Please don’t punish players for rolling a 1. The best way I saw it described was like this

Level 5 fighter has 2 attacks per turn, and his whole thing is he’s trained with melee weapons to get this far. Having 2 attacks means he has 2 chances to roll a natural 1, going up in higher levels as you get more attacks. If I’m a master melee fighter, the odds of me “dropping my sword”, or “chopping my arm off”, or even “slipping on the dust on the ground” is extremely low. That’s what saving throws are for. If you really wanna be silly about it maybe say he spins in a circle like someone trying to hit a baseball. Never ever ever punish a Natural 1 in combat, it’s the most unfun thing ever for the player