Yep, that's the one.
I'm not saying Wigan and West Ham haven't done well and punched above their weight, and in the cold light of day I think you'd have to say that looking back on the season, losing to them both isn't the be all and end all.
However, 4-0 with our 'strongest' side out, though not yet accustomed to one another. 2-1 in a match where we really didn't even show up for the second half. It was one of the most embarrassing narrow defeats I've ever been to. 2-0 at home to any mediocre side is a bit wet. I think all three of those games went beyond just 'losing'.
Anyway, we're only having this discussion because they were mentioned by another poster. Far from our worst this season.