I was at the store, waiting patiently in line to purchase my items. There was a man chatting in front of me, and it was unclear whether he was in line. I figured, no big deal, either he'll move forward with the line, or he won't and I can step up then. The woman behind me did not agree.
"Can you move up already?" she asked.
"I think he's in line," I said politely, continuing to wait. A few moments pass.
"Well, I guess because I asked, you're not going to move up, then. Bitch."
Everyone who has been waiting patiently turns to stare at her, because she's clearly missed her medication. A passing employee opened their register just for her, because this woman seriously looked ready to slug me.
But I've figured it out. If I had interrupted the man's conversation and asked if he was in line, explaining that I had to interrupt because if I could move up about a foot and a half, the space-time continuum would bend, making time go faster, so the woman behind me could buy her cheetah print press-on nails in less time and therefore meet the Doctor back at the TARDIS in time to save the world from alien invasion.
And now, we're all probably going to be infested by alien/plant/parasites and leafy fronds are going to grow out of our eyesockets, and it's all my fault.
Sorry about that.
(True: If I had the opportunity to time travel, I'd take a lot more naps.)