I got a friend who fukked his hand up something terrible when he tried to bang on one of those monster 300 400 lb bags. I tried to warn him but he ain't wanna listen dude never hit the bag before either but was trying to show me up and shyt. I was just talking shyt to cuz the other day about that too
I had a cat in my gym do the same thing too..the fukking bag was not only heavy but a little bumpy and like concrete..them old school joints.....first hard 1-2 combination i landed on it had me like .my hands, wrists, and forearms went numb..i thought i broke them...after about 10 mins or so of shaking my hands out...i went back at it...this time concentrating more on speed and technique...my hands got acclimated after some time i was able to put a little more into it..one day this cat was seeing me do work on it and tried to get on me like "youre a big guy i know you can hit it harder than that"..i was like im being careful. when i was done with my rounds...i went to sit down and unwrap my hands and he hopped on it..terrible punching stance then throws like 4 full power punches on it unwrapped and no gloves..then he screamed "MOTHERfukkER"!!!! holding his right hand...he busted open his knuckles..disgusting sight yet i had the face the whole time lol