punch a mirror then make out with the pieces 

climb something tall and throw yourself off, repeat ∞ 

jump on your bed so you headbutt the ceiling 

chestbump an electric fence 

have a veryhot shower then roll around on gravel 

chew rocksalt and gargle with cheap booze

wrestle an angry dog

 pick a fight with a built neonazi 

 wander round estate housing yelling about drugs 

find used syringes and suck on them  

stab yourself with a rusty belt-hole-punch 

 run barefoot through a carpark to a playground full of tanbark 

 climb a tree in your underwear 

 fall get up do it again 

 line your clothes with sandpaper and go for a run

collapse