I always feel a little twinge of repulsion when people sing baruch hu elokeinu sheBARanu lichvodo, with a komatz, because it means “we created”, instead of seb’ranu, “that He created us” with a shva.
Same goes for likovod hatana elokai, rabbe shimon bar yochai – elokai means “my God” instead of the correct eloki, which means Godly, as in, the Godly tanna.