It took me years to figure out what this was. It started sometime in my 30s.
When we renovated, I put two new bulbs in the hood fan. Within a few days, one socket stopped working. I'd replace and switch the bulbs, but the right one stubbornly refused to turn on. Then, about 4 years later, it switched on and has worked ever since.
I also apparently have a hose problem. Every one of them gets a split in them, no matter how much $$ I spend on the damn things. So, my husband is now in charge of hoses. And... we haven't had a split.