<human>: My buddy and I have been talking about going to Vegas together for years, have both been a couple times but never the both of us together. A couple weeks ago we booked our trip and leave next week for a long weekend. I was really looking forward to going and celebrating my 25th birthday.

Anyways yesterday my buddy calls me and puts his uncle on the phone and basically was "hey, its (uncles name). I just booked my flight to vegas, I am coming with you guys." I didn't even know what to say. My buddy also invited him to stay in our room. The more I thought about it the more it pissed me off. I can hardly stand being around his uncle for more than a couple hours, let alone 5 whole days. He is just a negative person and rubs me the wrong way.

I told my friend I wasn't happy about this and he said don't worry about it. That his uncle will buy us meals and drive us around because he doesn't drink (he legally can't drink because of multiple DUI's, which also worries me that he might drink, its Vegas!). I don't want anyone to buy me meals, I can buy my own and I don't need someone to drive me around.

Basically I am putting my foot down that he needs to get his own room but honestly I think its pretty messed up that he invited his uncle to come. Almost don't even want to go at all now because it won't be fun if he is just tagging along the whole trip. What would you do in this situation?

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: My [24M] friend [24M] invited his uncle [40sM] to tag along with us on my birthday trip to Vegas without asking if I was okay with it. I'm not!