Have you ever gotten period blood on your boyfriend?

Have any of you ever gotten period blood on your boyfriend? If so how did he react?

Here's mine:

Last night I was making out with my boyfriend and he started guiding my hips to grind on him, afterwards there was a Superbad style blood splot on his leg I was so fucking embarassed but he reacted fine and actually told me something very personal about himself to make me feel better, I'm so lucky that he's so understanding but it was still really embarrassing and just the thought of it makes me wanna beat my head into a wall.