We haven't used the walkie talkies since.
But this weekend, when the power mysteriously went out in one and a half rooms of the tenants' unit, it required a great deal of shutting the breaker on and off to test the connections down a length of wire. All three bedrooms of that unit, the bathroom, half the living room, and the refrigerator--not the whole kitchen, mind you, just the refrigerator--are on a single breaker. The power had gone out in the last bedroom/living room, so we needed to trace the length of the wire to see where it had gone faulty. (Ted eventually traced it to a connection in the middle bedroom, and got it working properly.)
I manned the breaker while Ted worked. The problem is the breaker is in the basement, the tenants' unit two floors up. Shouting doesn't work as a means of communication--you simply can't hear from that far away--and cell phones quickly became a hassle. The walkie talkies ended up being the perfect solution, and I'm glad we've found a second use for them.
Plus, they're pretty darn fun. Breaker 1-9.