You’ve gotten a lot of snark here, and that’s too bad. But I think that some people were reacting to a couple of things.
One is the implication in the original post and some subsequent additions that people in a “gated community” wouldn’t steal, and therefore it must be a person hired by the barn who took the money.
Since you have no evidence of who took the money (or even really if anyone deliberately stole it), you were suggesting this on the basis of your own prejudices about what people like you are capable of versus what people like the hired help are capable of.
Based on my own life experience, let me assure you that people with middle-incomes and upper-incomes are indeed capable of stealing. They probably don’t call it “stealing” when they do it: they’re borrowing the money and definitely, definitely intend to pay it back–not; or they think you’ll never miss it; or whatever.
Also, I think some of the responders reacted to your suggestion that you’d sue the barn owner for the $100. No. You’re not going to sue the barn owner for $100. Even if you could prove that the barn owner was somehow responsible for the loss of the money (which you can’t), you wouldn’t sue someone for $100. It simply isn’t worth it in terms of the time you’d have to spend to bring the suit, etc., even in small claims court.
So, bottom line: it sucks that you lost the money. It sucks that it’s possible that someone might have taken the money deliberately. But making unfounded accusations about the barn owner or the barn staff doesn’t really accomplish anything.