That's kind of rude and mean, dude. Learn some manners. She's way too pretty for you to draw something so mean and disrespectful like that.
I agree, I think that really crossed the line, making fun is okay but this is very rude, poor girl, imagine how embarrassing that is for her whether it was or wasn't blood.
It's funny to a lot of people ... Not everyone is a sensitive diaper sniffing PC fuck-tard, who thinks it's their job to lecture others on what we may, and may not find humorous. Get over yourself; God did NOT put you in charge of the rest of us.