If you're rubbing your head like this Mandrill monkey is, then you are probably wondering how you could've forgotten someone's Birthday. You are also probably saying something fairly similar to this funny belated birthday card from NobleWorks. So why not give the Birthday person this special card to let them know that your brain has gone to 'Ape Shit'? At least that way you don't have to try and come up with any 'Bull Shit' excuses as to why you forgot about their special day. Come right out and tell them you have no idea 'What DAFUQ You Were Thinking'