Definition: In this task, you are given a Reddit post as a text. Your task is to generate a title for this text. The title should start with "TIFU by", followed by a situation that caused humor. The title should contain 7-12 words, ideally.
Input: Text: so my gf and i were fucking around at home the other day playing with some juggling balls as she attempted to teach me how to partner juggle. we dropped them all and i rolled one up onto the top of my foot and kicked my leg straight forward to kick the ball up and catch it. right at that exact moment she bent over to pick up one of the other balls, her head met my foot perfectly. she was bending over with the speed of someone not expecting to hit resistance, i was kicking with the same amount of force, and we were perfectly positioned so that the ball of my foot hit her directly in the middle of the forehead. needless to say our juggling session was over and she ended up with a nice sized knot in the middle of her head.

TIFU by kicking my girlfriend in the head.