Veterans can fail sometimes too, after all we are humans. See this video compilation of military fails. Some of them look painful.. The profession of soldiering as in military is far more older than recorded history itself, so this has been developing for some time. Professional soldiers still seem to fail while on duty or a training session. Not being able to trow a grenade or non professionalism when trying to handle hand weapons and many more embarrassing moves. Are they trying to be lame ? See this video of compilations and get a closer view yourself.