I drop very few domains because I traditionally select them very carefully.
Once in a while I will drop 10 or so that have had little to no activity.
Not long ago I dropped MapleOil.ca & MapleOil.com
Originally when I registered them I was thinking of the Oil Fields in Canada but I figured a few companies owned all of them and chances of them wanting the domains were slim so I dropped them.
Huge Domains snapped up MapleOil.com and in retrospect I know it could be used in the Marijuanna catagory for Canada.
Two Questions....
1. How often do you second guess drops?
2. Has Huge Domains picked up your drops?