When you leave kids with dad…

… he begins their Spider-man training.

Ah, isn't it nice to see children and parents play together? Especially when, you know, you train them to be ninjas.

This great little video of two adorable kids went right to the frontpage of Reddit overnight, and with good reason - it's very, very cute.

Yes, it's an old video from 2011, but we hadn't seen it until now.

These kids are going to rock at PE in school.