My band had a substitute drummer on Friday that made me wish we had canceled the gig. Nice guy. A bandmate had played with him from time to time for 30 years. We had a rehearsal with him earlier in the week, where he seemed to know the material well enough and played with steady tempos. At the gig itself it was a different story. He still knew the stuff well enough for a short notice sub, but his tempos were terrible. Many songs started too fast and only got faster. Even the ones begun at the correct tempo ended up as sprints. No pocket. No groove. Just off to the races. "Lay Down Sally" turned into a polka. It was embarrassing. At least it was only a bar gig and not a big club. Still, it was standing room only, and you never know who is watching.......or worse, posting video.