just raise your barter skill to extend timeout.
Well still players could hog the trader and sit there all day even scrolling. Even more annoying than the timeouts is waiting to get to the trader in a crowded NCR.And it would make it hell for the players waiting.So this wouldn't be to good of an idea.
Raising your barter skill extends timeout!??!? WHY WASNT I INFORMED OF THIS!? lol >.>
WIKI and description of skills and other shits next time...