Litsen maybee it is just me but anyway...
i made a small emergensy light or wtf it's called and tied it to func_rotating_func_rotating in hope that i would spinn like hell but when i tried to start the map Valve hammer editor got really pissed and screamed LEAK even though it was floating in the air in a SOLID room
then it hung up and made Windows crash !!! OMG !!! (so dont try this at your home) Im telling you it is dangerous to mix stuff.