I turned round to see them making obscene gestures at me

I was walking into Tesco, when two guys said something to me on their way out. I missed what they said but I knew it was aimed at me. As I walked to the back of the store I turned round to see them making obscene gestures at me. As I decided whether to phone the police or not, I snapped and I stormed towards them. As they saw me heading their way through the busy store, their faces dropped and went white. I shouted, ‘What? What do you want?!’ They stuttered over their words saying ‘I-I-I-wasn’t.’ I said ‘This is harassment, don’t you dare’ and returned to the store to continue with my shop. Unfortunately for the men, a busy bus stop is right outside the shop. By standers offered to walk me home, but the men had long gone, so I had no need to worry.