What's the worst thing the user above can do?

Stop playing chess with me.
 
Defrost the chicken, but leave the chicken out for too long.
 
Use a hairdryer and then drop it in a bathtub with your sister in it.
 
Nothing, because you never do anything bad as far as I know. Which is a good thing ;).

I know the next user is supposed to do this but for me, the worst thing I can do is get temp banned again.