I have so many blonde moments but here are two I had recently.
Somehow we got into the topic of lost leads in a class. and the teacher used te example of buying turkeys at 20 cents a pound then selling them for 18 cents, and then asked how can the store make money. And I was like "well if they sold enough turkeys" It took me awhile to figure out my mistake
Then today I couldn't get my key card to work, now keep in mind I've been doing this all semester I was getting really frustrated then I realized my key was backwards.