While I very much like to cook, I picked washing dishes as my favorite. With my hands in all that soapy water, it's one of the few times I don't get bothered.
Nope, sorry, can't answer the phone right now, wet hands.
Nope, sorry, can't help you find yada yada yada right now, wet hands.
Nope, sorry, can't sew that button back on, wet hands.
Nope, sorry, can't drive you somewhere, wet hands.
Nope, sorry, can't bring you whatever it is you're too lazy to get yourself, wet hands.