Back in 1994 I built a SuperSportTrainer, My friend and instructor did the maiden flight without problems. Then he handed the Tx to me, taking it when I was in trouble.
The second weekend while I was turning for final the plane dived suddenly and crashed, destroying three servos and receiver.

I put it in a bag and tried to forget about it for a year until my brother insisted in rebuilding it.

After I bought a new Rx I realized tha my transmiter was completely dead, not the batteries but the system itself was faulty.

Then I reentered this hobby (with a new radio of course) and never stopped.