During an expansion here years ago I had a tree contractor take out 17 trees to make room for an addition. Asked about stump removal in another area he priced them at 10 per, at my guess of 25. I walked around with a paint marker and hit them all, but kept losing count when I tallied. A husband/wife team showed up on a Sat AM early in a brand new Jeep with a brand new trailer holding a brand new chipper with a full curved plexi-chip guard. It was 95 degrees that day and they worked for most of the day, leaving a wealth of mulch piles. After I got done cleaning up the next day, I counted 31 stumps, but the contractor never knew it. I know the couple was just glad to survive the job. I doubt they had a very close count either.