I too carry an LCP - in a back pocket leather holster - similar to the one pictured earlier in the thread. It goes everywhere. But even with it's small size, I must be careful that the "top" is not noticeable - meaning the pockets are not deep enough or are too loose at the top. I am in close, many-people, social situations often in dress slacks. Some slacks are fine - some you need to be careful with.
I have other choices for carry - been looking for the perfect conceal - like so many others.... - LCR, Smith Airwieght 438 revolver, LC9 - the LCP is the best for conceal. I prefer revolvers for their simplicity and reliability - but not for deep carry.
If the back pocket is not deep enough, you can carry it in the same holster in a front pocket. It just does not print in those holsters.
Kick - Yes - the LCP kicks. But that is range time. Concealed carry self defense would be a short distance point and shoot quickly - two or three shots at the most. Not 40 - 100 shots at the range. "Hurts to shoot" wouldn't matter. You wouldn't even feel it. But if you didn't have a gun - you might feel something else... It's a comforting thing to have a reasonable gun concealed.
As an aside, I got the LC9 as a 9mm alternative. It shoots with a lighter kick than the LCP380! It's the weight difference - though there is not much of a difference. But the LC9 is just large enough and heavy enough that I really don't carry it - the LCP wins the selection every time I go out - as the most concealable.