I was landing on a grass strip one time in a 172 when I noticed something on the runway.
"Is that an animal of some sort?" I asked my girlfriend in the co-pilot seat
"I don't know" she replies.
As we get closer, I see none other than a large tractor mowing the runway.
Just thought I'd share and contribute to the potential realism of this sim
You have to mow it sometimes haha!