When we were little, my dad was pretty creative with the methods he used to get us out of bed. If yelling didn't work, it was often a pitcher of water, a bowl of snow or even some frozen ball bearings that would follow you around under the sheets no matter where you turned.

But he never used this method. 

Mostly because laser pointers weren't as easily attained in the early '80s. If they were available, I'm sure he would have tried this too...