To be fair, the scene in which Becca's dad lets her use him as a training dummy for the self-defense techniques he's teaching her is incredibly brave and compassionate. All humor aside, it's a scene of a father giving his daughter the closest possible experience to dealing with a real attacker. This includes spraying his eyes with mace, kicking him in the balls, then ripping his moustache off (along with the skin underneath). It's made painfully clear that he's in agony, yet he chooses it for her, in spite of her protests. That kind of determination is something you'd expect in a blockbuster thriller with Liam Neeson or something, yet we see it here, in a film by the makers of Epic Movie and Disaster Movie! With Oswald!