Stupid isn't

Putting your second lot of homemade tomato soup in the blender and maybe overfilling it or perhaps the heat did something, and blowing the top off so you're scalded with soup spatters and the kitchen is redecorated in red, the cupboards, counters, floor, Jane.

No. That could happen to anyone.

Stupid is deciding the lid wasn't on right, replacing it firmly, hitting the button and....

KABLOOIE.

What was left of the soup tasted fine, though.