Sir Paul McCartney
"I think the 'Just say no' mentality is so crazed. I saw a thing in a women's magazine the other day. 'He smokes cannabis, what am I to do? He laughs it off when I try to tell him, he says it's not really harmful...' Of course you're half hoping the advice will be, 'Well, you know it's not that harmful; if you love him, if you talk to him about it, tell him maybe he should keep it in the garden shed or something,' you know, a reasonable point of view. But of course it was, 'No, no, all drugs are bad. Librium's good, Valium's good. But cannabis, ooooh!' I hate that unreasoned attitude."
Reread that again and replace "eats meat" instead of "smokes cannabis". Paul sneaked a steak here and there in his years with Linda who advocated "just say no" towards meat. Why didn't he ever tell his wife to stop trying to control his life and accept his diet.