A dry doc.
I give tours at a zoo. Each tour goes for a couple of hours so it is good to engage the guests and make the tour a bit more fun. What is your favourite animal joke I can use at work?
Because Ken always came in another box.
Chirpes. It's a canarial disease, and I hear it's untweetable.
Herp-n-derp-es
His medical license was doctored.
URINE. I'll let myself out.