My mother-in-law came to visit once. I begged her to stay longer but she said “Fish and company go bad in 3 days”. She was an enjoyable lady. :)
I try to keep that in mind when I visit anyone. My class reunion is coming up in a couple of weeks, and I’ll be gone four days.
But I may not stay all three nights with my friend. I may impose on one of my nephews! I’ll see what happens between now and then.