WW2 1942 Trench Digging: Funny sign.

Canadian personnel digging slit trench during attach. (L.-R.): Signalman Rusty Forsythe, Capt. R.W. Armstrong. 25 July 1944, Ifs, France. Funny sign, but I guess this felt true for alot of the men in WW2, constantly having to 'dig in'.