This was not fun

So one day as Tobi and Cooper came in from a walk, this landed on Tobi and she freaked out and flicked it off of herself. She didn't know where it went, but apparently, it landed on Cooper (while he was still strapped into the stroller) and went down his shirt, where it stung him 3 times.
The stings were not major and went away soon (1-1.5 hour) but this thing was as tough as nails. We chased it around for about the same amount of time, and I finally managed to stun it with a long duster and take this picture so we could identify it (thanks to http://bugguide.net/) as an Ichneumon wasp. Ultimately, Cooper and Mom were both okay with no lasting (physical) harm.