This happens way too often OP. Totally not right that he was allowed to board and hassled your wife. If you will allow me to share a horrible story with you about drunk passenger. This is is long story but I remember it so vividly as if it had just happened to me yesterday. I was flying with my sister in Y on a red eye 4 hour AC transcon to YYZ. She was window, I was middle. Aisle seat empty. Everyone has boarded. I thought to myself, please close that door now so I can spread out. Full flight. Low and behold, a man gets on last minute. He walks down the aisle and I already noticed his face was bright red. I prayed that he keeps walking to the back and not sit down next to me. Nope. He sits down next to me. He smells like he had way too much to drink prior to boarding. He is a huge man. His shoulder literally are in my seat. Argh. While taxiing for take off, he puts his head on the back of the seat in front of him and starts to make grunting noise. I asked him, are you ok? He said yes.

While the plane is climbing, he pulls out the barf bag and starts to fill it with his vomit. This continues for another 10 mins. He takes his jacket off and hands it to me and asks me to hold it for him as he continues to vomit into this paper bag. He fills it, puts it down on the floor. I told him, you need to go the back and use the washroom. He says no, I am ok here. Now he is taking a break. But all of a sudden, he starts again. This time, he vomits on the seat, on his pants, on the floor !!! I told him to go use the bathroom in the back, he asks me for my barf bag. He is filling a second bag with his vomit. Meanwhile, passengers around him are wondering what is going on? 2 FA walks by and didn't seem to notice this was happening. How could they not smell it? It was horrible.

Finally I flagged down a FA and told her. She sent this drunk man to the back with the soiled seat cushion. She then had to spend the next 15 mins cleaning after his vomit off the floor. Seriously !!! I told her she should have made him clean it up. The stench was so bad. My sister and I were sitting right next to this for 4 hours with no other seat to move to. For the remainder of the flight, the drunk man stayed at the back. He was a huge man, imagine if he had acted up and became physical? It would have been a nightmare in the sky. How can the gate agent not smell and not seen how drunk this man was and still let him board? He should have been stopped. He was a hazard to us and to himself. GA needs to enforce this kind of behaviour much more strictly by denying boarding to anyone suspected of being drunk. What a horrible 4 hours we endured and it was already rough enough that it was a red eye flight. Has anyone experienced something like this in their travel?