What's the dumbest thing you've ever done during a skirmish?

Tried to be John Wick, and combat roll under a bus. Managed to smack my head. Made my buy a helmet though!

Run full speed into a tree. The GBBR did survive, myself... Barely

I was at the corner of a building by the door and kneeling and someone threw a grenade and it hit the tree next to me and i lunged backwards thinking it landed infront of me but went headfirst to it

Went through a thorn bush in a hurry.. came out the other end covered in thorns and blood. Luckily the adrenaline kept the pain away!

Tried to jump through a window opening.. completely missed the opening and head butted the wall beneath.. lads I was with had the best laugh!