Fun fact: Buffaloes hold grudges like whoa. Look at a buffalo the wrong way and he'll come after you years later. Forget his birthday? Yiiiiiiiikes. We all have that buffalo-esque friend/family member/coworker who just will not let a forgotten birthday go, so never miss their special day again (and maybe even get them to crack a smile with a good old fashioned animal pun) with our Happy Buffday card.