Have you ever ghosted someone?

I only did one time, years ago in my early 20's. It was an old friend of mine, he was a pretty big alcoholic and used to always want to go out to bars and get hammered, and wanted me to go with him all the time to be his "wingman". He was basically trying to meet random girls to sleep with, and prioritized only on that. He was in a long term relationship with another a woman, but he kept cracking jokes about how he didn't care about her and how he was probably going to end up leaving her (he had some childhood issues, his mother was apparently also a big alcoholic). He would constantly try to pick up girls the drunker he got, and if he didn't succeed he would somehow try to blame it on me, and would try to use me as the butt of jokes in attempts to impress these girls, which was just demoralizing. I eventually just stopped taking his calls about going out to drink, and stopped talking to him completely. I couldn't handle that much negativity and destructive behavior anymore, and he didn't seem capable of changing.