The last time I checked, "boys being boys" did not include genocide, pedophilia, slavery, or treason.
Of course, I asked for clarification:
What do you call "really stupid"? Were they sticking their tongues into electrical outlets? Jumping off of garage roofs? Voting Democrat?
Or is that just your extenuating the evil practiced in obedience to Allah's command and in emulation of Muhammad's example?
And if those 'really stupid' acts are actually things like 'killing pagans,' 'striking terror into the hearts' of non-Muslims, or 'being harsh to unbelievers' -- all of which are Muhammad's commands -- then how is attribution to Islam anything but "valid"?