A sharp lesson

We learn at an early age (usually thanks to Mom) not to run with scissors.

It's pretty much common sense once you're older than 5 years old.

I have to add to this: when you're sitting on one of those giant, inflatable exercise balls you really shouldn't play with sharp things, like really, really goddamn sharp knives.

You know what I mean. Those knives that have points so sharp that if they slip from your hand, they draw blood from just the tip touching your leg.

Those kind.

They also puncture those giant, inflatable exercise balls.

That, for the record, is goddamn annoying.

Just sayin'.