Here's a slightly sicker version:

I told my boss about what I did and she probably topped me. She recently cut her finger at work slicing some French cheese, and the docs at the urgent care place (after stitching her up) told her to soak the cut periodically in hydrogen peroxide. So she did -- stuck her finger in a glass of it for the required time. Her husband comes home from work. They planned a movie that night -- first in a long time. He goes in the kitchen and sees the glass of "water" and drinks it. She realizes what he's done and calls 911 and gets poison control and they say he should be puking within the hour, which he does. He's well enuf later to go to the movie, but she can't get it out of her head that she had that nasty cut finger in that water, which spoiled what should have been a romantic evening.