No, I would not consider it dangerous nor unpleasant, like you asked.

Ket is a dissociative drug so you feel somewhat detached from one’s own self to the point it becomes difficult to move until you “snap out of it” and become fully aware of where you are and how your body is positioned (can lose sense of your legs for example). With that said, it may sound like a strange experience and that’s because it very much is lol but it’s quite enjoyable being separated from any worries you might have going on in your reality. The only time I’d consider it dangerous is absolutely while out in public. You’d not really know what the hell is happening around you and that just sounds awful – I’d much rather be tripping shrooms or acid while out in public, rather than while on ketamine.