On such rare occasions as I had to make it part of my business to disguise myself I selected for choice the transfiguration of my outward appearance to a younger rather than an older person whenever the circumstances so permitted. For example, I would enter a building to all outward appearances a man of sixty years of age or upwards, and within a very short space of time reappear as a man of not more than thirty. These tricks may be attempted at night in artificial lights, but by daylight the risks of discovery are not worth the small gain or advantage that may be believed to be attained by their aid.

The common sailor, or working-man who is badly dressed, very dirty in appearance and who has not shaved for many days, is generally an object which most men avoid and few women find the smallest interest in; whilst he can roam at pleasure in most public places, and if he has the price of a drink in his pocket he invariably gathers around him a multitude of friends ready to tell him anything they may know or to believe any cock-and-bull story as to his own antecedents which force of circumstances or a very vivid imagination may suggest.

All disguises and concealments of identity are of little avail unless very thoroughly attempted and carried out.

Sir Robert Baden Powell, in his book "My Adventures as a Spy," speaks of the importance of remembering the back view. He writes:

"The matter of disguise is not so much one of a theatrical make-up—although this is undoubtedly a useful art—as of being able to assume a totally different character, change of voice and mannerisms, especially of gait in walking, and appearance from behind."

A Service officer, whether of the Army or Navy, would have far greater difficulties to contend with in this respect than would any ordinary civilian—which is probably one of the main reasons why Service men are avoided when possible by the German Intelligence Department for active executive work.

The face and body are easy to disguise, but the hands are not. For a rough character rough hands are essential. Remember that it is a sure test, when questioning a tramp or hobo before probably wasting one's sympathies as well as one's substance in trying to help him, to demand an examination of his hands. They tell at a glance whether he is a genuine trier, or merely a chronic waster. Therefore, before undertaking to appear as a unit of the working-classes, it is advisable to take on a job which will put one's hands into the condition that would appear compatible to one's outward appearance. Unloading or loading bricks into a vessel, or a truck, is the quickest and surest way of accomplishing this purpose. In a few hours, hands which are unaccustomed to this work will crack up and blister beyond recognition. Its continuance for a couple of days will pull the nails out of shape and give the full, true, horny, hardened grip of a genuine son of toil. Want of soap and water will complete a supreme finish to the seeming ideal.

Once upon a time there arose an occasion when I had to ship as deck-hand and general knockabout on a small Baltic coasting craft of no classified definition. It was rough work, rougher living, and roughest weather. But one soon accustoms oneself to one's surroundings in life; and it really is marvellous what a satisfactory clean-up one can make with the assistance of a little grease and a tiny piece of cotton waste.

The cruise had been completed and the vessel was returning to a friendly port when her skipper undertook to ferry a party of ladies and gentlemen across from one small island to another. The deck hand—need I explain that I acted in that capacity?—was indisposed. He sought his bunk below, only to be sworn at and cursed, and ordered out again in a manner which unfortunately brought him under observation, exactly the opposite to that which his modest, retiring nature desired; more particularly so on the occasion in question.

One lady, a bright-eyed, vivacious, sweet-faced woman of between twenty and thirty years of age, remonstrated on behalf of this seemingly ill-used and unfortunate mortal, and she pleaded with the skipper that the poor man looked frightened and ill. Alas, poor me!