What is the worst user experience that everyone has ever experienced?

The worst time I've ever experienced was when the company signed up for a tour. It must be because of the low price, so the two-day trip was on the road, that is, in the store where I bought things. The tour guide always hints that we should buy some gifts and souvenirs, and the time to really see the scenery is very short. It's not a trip, it's a shopping trip, and it's the kind that was slaughtered. It makes people feel angry. It seems that cheap tour groups can't keep up in the future. Cheap things are bad.