Yeah I remember back in the day dropping bags at the inn and sweating it as I re-logged the other character. Because of that I'd also pay attention to people doing that and gank their bags. Not as likely people would be watching for that here since you can multi account but i'd just create a 2nd account to trade with.
Be careful not to drop your bags near NPCs. Not sure which ones do it, but some of them will scavenge things that are on the ground. I tried to trade my first ever paragon chest in this fashion and the sailor at Shelter Gate tavern picked it up on me.