yes, I watch for red flags...... I was in a situation were someone asked me to comeover he was at a friends house and they were not home. He was a strange guy to begin with. He made a remark for me to come alone. Red flag, I took a guy friend. To make a long story short he stole to friends car later that week. When they cought him, we found out he had broken probation in Flordia. He had a rap sheet longer then my arm.... robbery, armed robbery, rape, attempt of murder and the list goes on ............. I pay alot of attention to things, the way people talk, the way they carry themself...... oh, I could tell you another situation of a red flags 8 months ago at a local park.....maybe another day!!!! but that caused me to buy a gun and a pistol permit.......