"Oh, ugh, put that thing down!"
Sherlock looked up curiously at the yell from the kitchen. John came tearing out, wearing a most impressive scowl.
"It's your damn cat and your damn experiment, you deal with it!" he exclaimed irritably. Sherlock got up to see what was making such a fuss.
In the kitchen, Debbie was batting a tentative paw at the finger Sherlock had put in the microwave. She'd somehow gotten it wedged in the sink drain. Sherlock sighed. Why couldn't he have thought before acting, for once? But no, now he was stuck with a cat.