This glitch happen also during trading...
I have some piece of advise for you skidz since you are interested in avoiding from this so called scam:
1. Never ever trade in HQ or near the bank/Hero/Talic vendor/RaceManager
2. Try to Avoid those people who wanted to see your Items. They want to see your Armor set or weapon.

3. Don't let the trade lock not confirm only the lock button to long... maybe more than 2 minutes I guess

... hahaha I am spoiling it already

...
if the other player lock the trade cancel it immediately or confirm if the two of you are trading... more than a minute locked will cause you trouble.
I am just trying to help.
wooops... that's for it
Thanks,