USB ports not working
USB ports don't work. Nothing plugged into them registers. SMC and PRAM resets do no good. Apple Hardware Test reveals no problems. Only noticed since Mavericks. I've also experienced the random log out twice. I've spilled a drink on/near it while it was closed before, but I did a full functionality test after I dried it off and everything worked.
Macbook Pro, 13", Mid-2012
MacBook Pro, OS X Mavericks (10.9)