Hidden Dangers

In Berlin it's Popkomm time and when I was trying to escape the mob of German teenage girls screaming for Tokio Hotel, I fled into a clothing store. Since Winter is rapidly approaching Berlin I decided to try on a jacket. I think it fit fine and looked ok. But I couldn't really focus too much on such superficial qualities for I felt an ever intensifying sharp pain in my arm. I took of the jacket and found a sting in my arm, still rhythmically expelling poison into my flesh. I looked at the tag of the jacket: "made in China". With the corpus delicti I went to the salescounter and asked, whether this might be a chinese poison sting and whether there had been any previous cases of sudden customer death after trying clothes. One salesclerk said: "It's very fresh, look, it moves!" The other said: "Well, I'm no biologist...." I left the store without making a purchase.
Outside, a person asked if I had 10 minutes to participate in a study. I was still in shock and said yes. My arm was starting to change color and shape, the the eyes of the interviewer constantly shifted over to my rapidly expanding arm. "I had something like that in Australia....maybe bedbugs....." she said.
By the end of the interview the swelling had spread evenly and the affected arm looked rosier and healthier than the painless one. But please don't touch.
I suppose I'll survive, but what lesson did life try to teach me?