I carry a Sig P239 in Sig 357 and on my desk I have a Sig P239 with a laser target cartridge in it that I can practice with when ever. Went out yesterday morning to a few places carrying my P239... then wife and I were planning to go visit some friends later in the afternoon.. in between the times I decided to do some dry fire practice and removed my loaded carry pistol (it is always loaded... I learned my lesson years ago). Put the pistol with the laser cartridge in my holster and did some practice using an ap on my phone for about 5 or 8 minutes.. .the sat down and did some office work and then it was about time to head out to the friends.... was just fixing to leave and then realized I needed something in my office and when back.... there is my loaded carry pistol sitting on my desk... I still had the one with the laser cartridge in my holster.....