Thorfroden

I picked up a TB in Quebec and, when I checked the TB Map a few days later, someone had discovered it, on a day when the TB was in my geocaching fanny pack. Upon further investigation, this cacher has "discovered" 37 TBs in the last 14 days, some hundreds of miles apart on the same day. I suppose it could be done, but I know for a fact that I did not show this TB to a 4 figure cacher. Perhaps they are a "four flusher"?