I can remember Keith Leonard saying something similar. If Saunders called the players together you could tell the ones that had been drinking, they'd be down tying their bootlaces!
Bumped into Sid and his son Henry about a year ago now and it was a bit of a shock to see him TBH. I've seen a lot of Dementia and Alzheimer's over the years, both my parents had it and the wife's parents too, but to see someone with it who's only 2 years older than me was an eye opener.
All the best to him and his family.