What is pissing you off this time?

[Lamplighter]

Somewhere I previously posted my frustration about calling out a repairman
to fix an oven-control, only to find out I didn't know how to work the controls.
That "education" cost me $65 for the 5 minutes of his "teaching time"

Well, yesterday my tenant informed me that the washer was not working.
I called the same repairman, and it truely was broken so for $135
he got it working again by replacing the belt, and he went on his way.

BUT, an hour later, the tenant calls to say the drier is not working,
and sure enough, the belt on the drier is shredded.

Now what are the odds of the belts on two different machines
breaking on the same day ? Appliance abuse ? Malicious ?

Regardless, I'm ticked because the repair guy could have fixed
both on just one (minimum $65/trip + parts + labor) visit.