Swiss droll

Swiss Passport Official (humourless): Do you have a dog at home?
Me (surprised, confused): What? Er, no, no dog...(rabbits)...well, sometimes, but not always and not for a while now (surreptitiously tries to check for hairs)...why?
SPO (withering, hands passport back over counter): Well, something has been chewing your passport. Look at these teethmarks.