They can be big, or small, or misfire even....
Here's mine.
I'm working from home, on a call to a colleague. The doorbell rings.
I answer it still on the phone. It's a friend of my husband's. I ineptly signal him in and beckon husband in from garden whilst continuing call.
Once off phone, I pop into to kitchen say hi and apologise for my inept/stumbling signals saying "I'm no good at multi-tasking."
He replies "I'm not either.... but I'm a man....." and then looks a bit confused. He knows there's something askance about what I said and he's waiting for me to rescue him.
I don't. I don't qualify my statement that when engaged in work I find it difficult to simulteneously perform a domestic favour for my husband. I smile and leave.
It's small, it's crap, it's nothing really but it's done now and if another woman says it to him he might just begin to wonder whether multi-tasking really is something that women have to do but he doesn't.