You better be real good friends if you plan to give this hilarious Birthday greeting card from NobleWorks to your boss that happens to be top level management. If not, then you better hope like hell he has a fantastic sense of humor and isn't the type to try and seek revenge. You have to admit that it takes a special type of person that can be told he has 'Small Balls'. If you are unsure of either his sense of humor or how strong your friendship truly is, then you might want to hold onto this card until it's at minimum your mid-level managers birthday. But it is your choice...And your job on the line.