Today, I'm a horse trainer and I started working with a lady's horse. After two hours of hard work and sweat, me and the horse in question are tired and I tell her I'll be back tomorrow. I get to the part where she's supposed to pay me and she says, "Oh! I thought this was free!?" FML
OP here! This was the first time I was handling a client on my own. I've been an apprentice for several years and I was recommended to this lady by a friend of mine. I guess their conversation about me somehow made it seem as if I would do the first lesson free. I did get the payment. Me and the horse are getting on just fine now and our lessons have been reduced to thirty minutes a day. He even greets me at the gate!