Wow 38, that is really cool.
We have a mule at the end of our road, Zeke, as we all affentionately call him. He has no teeth. He lives on beet pulp and equine senior.
He is an escape artist and often gets out and comes up the road to hang out with the ponies. We always know when he has been around as we find clumps of gummed grass. He still tries to eat it but all he does is gum it up and spit it out. He is quite a character and know one knows for sure how old he is but he is over 40.