It always makes me cringe when I read those two words, because what follows always turns out to be most offensive indeed. In your case however, the offensiveness is replaced by pure ignorance.
Benson is his
surname. That means that in actual fact, his parents didn't "think up" the name while high on weed - it means that Mac inherited the name from his father. A bit like how you inherited knowledge from my enlighting post, inspired by a pissy mood which I inherited from your drivelous and ignorant rhetoric.