Wording for a don't feed the pony sign

[LaPufalina]

We have my DD's pony on a smallish bare(ish) paddock to keep his weight down but unfortunately that paddock is next to a busy road and we've caught people feeding him so annoying.
He's very cute and friendly but I'm going to do some supplementary/more personalised signs to beg people not to feed him.
He had lami before we got him and has fat pads at the moment, no heat in hooves but I think he's borderline. Any ideas for wording for the sign?
Ps He has a grazing muzzle but he's so miserable wearing it so the small paddock seems the lesser of two evils but not if CFs treat him as a petting farm pony.

“Beware of the horses one of them BITES” does the trick here (none of them actually does!)

I think there’s no point trying to educate/appeal to people’s common sense, they just don’t want to hear it

Maybe something like 'Only those who pay my vets fees can feed my horse!'

Have loved reading all these! I had a similar problem on a previous yard where a "nice" sign wouldn't have worked as the area it backed onto was a rather hard part of the town - we frequently found WKD and Buckfast bottles along with other hoards of items at the fence!

However where we go on holiday frequently -nice little village- there is a lovely little sign outside two ponies paddocks it says something like:

PLEASE READ:
-photo of ponies-
Hello our names are Daisy and Sparkles.
We are Welsh mountain ponies and love people. We really enjoy you petting us, particularly a chin rub!
We know many of you like to feed us but it is making us unwell and it means we cannot get out to enjoy the fresh air and all your cuddles.
We are both on special diets, our owner has left a little pot with some treats that are safe for us to eat in small amounts you can give us one of these each. If the pot is empty that means we have had all treats for today.
Thank you for taking care of us!
Daisy and Sparkles X

• the pot of treats were a handful of what seemed to be the bigger high fibre nuggets

This is all you need. No one is going to read a longer sign and anything cutesy will get ignored.

Please don't feed me. I have a health condition and so many families that I should have been a cat.