I've gone to several different barbers trying to find one I like.
the last one was around my 5th.. I sit down and say 'leave the sides touching my ear, tapered in back, long on top'.
He says "you want a 3 or 4?" I look at him and say "what?" when I want to say 'did you hear a fucking word I said?"
He says "3 or 4?" I say I gotta make a call..get up and leave.
I just now finished hacking my hair above the bathroom sink.. took and hour but it's not half bad.