Pepper spray yes. Tasers no. Sorry for this really late post. Just started using this. 

Wow, I've never seen this question. Where has this question been for the last 1 year and 11 weeks? It's funny that you mentioned the taser. There was a story that happened in the states a chinese lady was trying to purchase several apple products. The store policy limited how much you could purchase at a given time. She couldn't understand English very well so she just kept going back. Finally, they banned her from the store. Kicked her out! She didn't know what was going on and kept coming back in arguing with the employees'. So they decided to take matters into their own hands and called security to escort her out of the building. That's when she yelled something along the lines of "I don't know what's going on!" "I just want to buy some apple products". Since the security didn't know what she was saying and because she was fighting back they tasered her several times. She started crying they took her to jail and that was the end of that story! 

Her husband was American and she was Chinese. I'm surprised she couldn't understand English very well being that her husband was a native speaker and they were living in America at the time that incident happened.