I would like to know when everyone has felt the worst about their respective professions. Things like an item you made and grew attached to being replaced, an item backfiring at a crucial time, or whatever else!
Personally, the worst I ever felt while Enchanting was a recent VOA run... We had 0 Death Knights, and one hunter with no need for the gear... At the end of the run, I had to Disenchant the Prot DK t10(sanc!) pants and gloves, prot DK t9 pants and gloves, Hunter t9 pantsx2, Warrior DPS t9 gloves, and Rogue t9 gloves.
And then I got called a ninja for D/Eing stuff that was useless. : /
Engineering, my worst experience was getting the Northrend Wormhole generator, porting immediately to storm peaks, and seeing a dead Time-lost Proto Drake no more then 20 yards away. Yeah.