About ten years ago, I worked for a small company, that had issued pagers to all their staff. When several people, all wearing pagers, work around each other a lot, what usually would happen is everyone would set their pager to vibrate instead of ring, because otherwise when only one went off, everyone would reach for their own, not knowing who's had rung.
Anyway, one day, I was working from home, with my pager sitting on the desk next to the monitor, and my cat Birkenstock had gone to sleep on the desk, and for whatever reason, had curled up on/around the pager.
Yes, the obvious thing happened, and someone paged me.
After she calmed down, she glared annoyance at me for most of the rest of the day.