Man burping in peoples faces

Finally came across that weirdo I’ve seen people mention on Reddit that intentionally burps in peoples faces. Myself and the gf were walking out of Dunnes on Patrick’s Street Wednesday evening and I could see this fella staring at us a bit ahead. As we’re walking past he steps in front of my gf, leans in and belches in her face. I really wanted to give him a slap tbh but just ended up shoving him out of the way. He was fine btw I didn’t hurt him. So bizarre and frankly disgusting