Yes, i have experienced it many times and i find it very relaxing and calming. Usually a shock of say ice if you are under for too long will bring you out of it. Even sometimes a change in where your partner is hitting or a different toy will bring you out of it. i however usually get ticked off for being brought out of it because i like it there. It is like being in another place all together and a calming. When you come out of it you should feel at peace, groggy/sleepy if slowly brought out of it. i.e. a mild change in pace, but that depends on how deeply you are into it. Or if you were rudely brought out of it i.e. the ice trick.