Friend of mine remodeled an old house. Into the walls, he inserted cans marked 1 of 3, 2 of 3....but never inserted a 3rd can. Someday...someone will go nuts...
Modern day aluminum cans(if that’s what your friend used) can develop pinhole, or smaller, leaks over the years. The contents can evaporate over the years ..I tried saving some cans of soda and they all were empty after about 10 years, tiny pinholes were found...
He should have used used small cans filled with dollar bills with a note stating the amount in the cans.
1. $20
2. $37
3. $1,675
I buried a hyper realistic skeleton from my wife’s first doctors office under the rose bushes, dressed in old clothes.
Someday, some future homeowner will have a shock when replacing the bushes.