What is a good EXOTIC pet?

Possibly you have your cart ahead of your horse here. Yes IF you become a DR you will have bunches of time depending on your specialty. however, there is that darn residency that happens before becoming a DR, where you have little to no time of your own. You are often on call for 48 hours at a time and cant even leave the hospital, who is going to watch you exotic during the residency period?