Back in 7th grade, I was sort of a V-pet daycare for a lot of people in my class. Most had Gigapets rather than tamas, and I was good at memorizing menu layouts so I could open my desk (do kids still have desks that you keep stuff in?), look at their screens, then slip them into my lap and take care of each one without anyone noticing. The gigapets were the WORST for this since they have that habit of just deciding they're gonna straight-up die every now and then for no reason, but I was always good at keeping the sound off and not getting caught.
Now, to put this into perspective, this was before the time most people had cell phones, and so electronics were never going off in the classroom or anything like that. We still had CHALKBOARDS (partly because my middle school was a very small parochial school).
Anyway, I had been doing this for MONTHS. My teacher was a short dude with a ponytail who loved doing reenactments of stuff from the old fur-trapping days, and so he was a grizzled looking fellow (nice guy, though). He had very little patience for our various virtual pets going off in class and had a strict policy for confiscating them if they went off.
One day, one started going off. I winced, feeling sorry for whoever it was. I knew that I kept all mine silent, so it couldn't be me.
But everyone was looking at me...
and it was coming from my desk.
My eyes went wide. The teacher knew about my daycare. EVERYONE'S pets were in jeopardy! At that time, I think I was managing about 5 different pets for people, and all 5 of the people who had given me their pets were white-faced with horror as my teacher walked up the aisle towards me.
Thinking quick, I opened my desk and took out my own P1, turned on the sound, and handed it to him (I figured out which other vpet was going off and silenced it while I had my desk open as well).
He didn't get mad, just stuck out his hand, and I put my tama in it. Of course, being a kid, I thought that he would never give it back or something, and my classmates looked like they had just watched someone demand I turn over the puppy I had been keeping safe.
Afterwards, I felt terrible since I almost got other people's pet's taken, but they were all pretty supportive of the fact that I fell on my sword for their pets. XD They could tell that the beeping wasn't from a tama.
I ended up sneaking in my teacher's desk during recess and taking my tama back. Later on in the day, he didn't say anything, but shot me this sort of scolding-but-impressed smile, and I knew he knew and neither of us said a word. XD