awakened by gun cocking sound

I was dreaming I was in a 1st floor apt that belonged to myself or family members. I was trying to take a shower but ours didnt work. So i went to the 2nd flr apt to take one and did, but as I was about to leave my first 2 children’s father girlfriend i guess at the time came into the apt with another girl and came immediately into the bathroom. I was embarassed and explained why I was there. They both said that it was fine. So I left with no incident and headed back to my apt on 1st flr. When I made it to lobby area to go in, a group of guys suddenly came up the front steps fast,some I recognized others i didnt,but in the middle of the group was my childrens’ father who I hadnt seen/or anyone else had seen either in almost 20yrs and he smiled at me and I asked him to step inside my apt before going upstairs, so I could prepare him for what I had done about the shower and did not mean any harm and that our water needs fixing bad. I was so glad to see him. I was so happy he finally came back to see us all. He reached out to give me a hug and i was startled out of my dream by the sound of a rifle or shotgun cocking. The sound was so clear and vivd it could not have been a hand gun,it was the “ca-ching”, “ca-ching” type sound. The 1-2 thing. You know the lock and load type sound. The sound is what woke me all the way up. I havent been back to sleep since this was around 7:30am, june 3,2010.