How many was the most times you ever grinded an instance for a single specific item?

[AskaRay]

Did about 50 runs of Copperbell HM for the zeta drop. I still have PTSD flashbacks whenever I go in there.
Did about 40ish runs of Great Gubal Library for the ranged gloves. I literally started /cheer ing in the dungeon when they finally dropped. My party told me to stop so I just up and left because I didn't need to be there anymore and it was about ten hours later.
Took months of Ramuh farming for his stupid bow. I got literally every other drop multiple times before the bow dropped. I lost track of how many times I've beat his beard in because it just makes me cry a little.

EDIT
Oh yeah I forgot
Trying for the BARD CHEST from Ex roulette..............ever since the patch dropped........... ex roulette at LEAST once a day and I just got it maybe two days ago. FML