Our previous dog was a 60 lb black lab mix. Towards the end of his life, I had to pick him up and put him in the cab of my truck for the trip to the vet. I vowed our next dog would be under 30 lb. So thanks to the wife, we now we have a gerbil-on-steroids Shi-tsu thing that looks like a ragmop with legs that weighs 10 lb soaking wet.
My BIL's late Chesapeake/Lab mix weighed in around 100, had to do the same thing..that's 40 more dog pounds!
She was a sweetie, but ravaged with all manner of ailments at the end and had to be put to sleep.
Now they have the mother-daughter Lab's...60 pounds ain't nothin'! (Now!)
Momma needs help, daughter still spry & springy!