Yeah, this time of year is pretty much the same. Guy comes in and wants a solenoid, later that day, he comes in for a keyswitch,
maybe later, a battery, safety switch, etc...
My one boss @ 12 years ago would get real mad if I tried to help them figure out what they needed, he would rather I sold the non-returnable parts, but I always had my multi-meter up at the parts counter so I could test their switches/etc.
I like to think that they trusted me for saving them money, but probably no.... I know better.....