I cut down a sugar maple out of the front yard this spring, just noticed the other day, it had a growth comming out of the center of the butt log.
I hated cutting that tree down, it was about 60' tall and 36" diameter, but it had some hollow limbs, it was time.
If it went down during a storm it would tear some stuff up, possibly my house or the neighbors house, or cars on the street.