ok so the other week we had a light drizzle and had the wipers set on intermittent and after driving for about a good 15 mins they just stopped

on their own. Later after about another 10 mins they just started working again weird

. Now yesterday we had a little heavier rain and I turned the wipers on the regular setting and worked fine until the rained slowed down and I turned the setting back to intermittent and they just stopped half way on the windshield

and would not work any more, I left the wipers on intermittent and a bit later they just moved back down to where they belong. Now this morning when I turned them on they would wipe the windshield but stop half way only....WTF
So am I alone

or should I call a priest to do some prayers over the wipers.