I have Crimson Trace laser grips on three of my handguns -- and would have them on the other two if CT made grips for the JC Higgins .22 nine shooter or the Colt 1908 Pocket Model (not holding my breath). I will not buy a handgun that CT does not provide laser grips for. That is how sold I am.
Would a bad guy see the laser pointed at him? If you had it on, you bet he would! And maybe he would even know what it was! Or not. In a HD/SD situation (which is what I train for at my range, weekly), I will not activate my laser sight until I am almost ready to open fire. It is not a flashlight, so there is nothing to gain from waving it around. Why let him know what I have? As I plan it, if I activate my CT sight, that fellow has a decision to make real soon now. If he makes the right one and runs like hell, then I'm a happy camper! But if he comes at me or mine, well . . .
Cordially, Jack