Please don’t do it.
Just a bunch of soldiers goofing around; what’s wrong with that? Well, in this case, their innocent antics will most likely end up with a few broken legs.
Not only the guy aiming to jump into his pants is the one at risk here. His buddies could get pretty seriously injured, too, as having a full-grown man ascend this close to you from that altitude is bound to hurt once he lands and inevitably loses his balance.