I gagged the perfected skills in my practice list, and then prayed to the imms about a problem with my gear.

I think I got Scarabaeus and I started going on about how I couldn't wield a weapon, because I was already wielding one, yet my "eq" list showed I wasn't.

I tried detect invis and all that and I definitely wasn't wielding one, because my staff of wizardry had vanished.

Then I realised just before he suggested it that I'd gagged "staff", since it was one of my perfected skills.