Switch problems on the Orange Line at Forest Hills, riders have plenty of time to write out their wills

I was on the first train into Forest Hills after the switches were (hopefully) fixed. The driver did a good job keeping us in the loop, as much as she could of course (she wasn't told how long a hold would be, so she couldn't tell us that).

Entering Forest Hills, my question was- where are the engineers kept when there is no switch or signal problem? I mean, it's not like they are stationed at Forest Hills or Porter Square waiting for things to get fucked up.

I think we should be thankful that it happened at lunchtime as opposed to rush hour. Yes, it shouldn't happen at all, but I am being realistic.