I recently acquired a new position at a retail chain where I work selling Electronics and what not, it is a commission position. There is one associate who likes to interrupt other salesmen mid pitch and tries to steal the sale, and on more than one occasion has actually ruined a sale because he contradicted what another salesperson had already said in a conversation. I am a very ummm.. lets say 'short fused' guy and am having a serious issue with these practices. I am looking for any peaceful ideas to fix this situation, preferably without directly threatening the person- I am open to any ideas/wordings that MAY imply a threat as long as I can say it and still retain my job without question.... if necessary of course, non threatening ideas are preferred. And managers/supervisors are aware of the situation and are not correcting it, so I ask you yahoo answers community..... ideas?