Buddy of mine down in Texas ran into the exact same thing with his garage door sensors. Every summer he was up on a ladder with a screwdriver, and every fall the screws were loose again. He finally gave up on the screw terminals and crimped everything, and he told me he hasn't touched those connections in three years. What got me was he said the screws weren't even backing out all the way, just enough to break the connection and make it flaky. The weird part is the sensors would work fine for months, so he'd forget about it until the door started acting up again. Crimps just sit there and do their job, no moving parts to worry about.

Wait, your dad just watched you sprint around for 20 years and never said anything? That's actually hilarious and also kinda cruel. The whole time you could've been standing still drinking a soda while the kite did all the work.