Which is worse, hair in your mayonnaise or mayonnaise in your hair? Assuming you haven’t actually eaten any, hair in your mayo is actually a pretty easy problem to rectify. You either toss the jar out, or you make lunch for any of your sworn enemies who’d accept a surprise sandwich from you despite your less than friendly relationship.
Mayonnaise in your hair, on the other hand, means you yourself are dirty though, and you’ve got to stop whatever you’re doing (such as crafting diabolical plots against your aforementioned enemies) to go and shampoo, right?
Actually, you don’t, according to people in Japan who say spreading a little mayo on your hair is actually good for it.