How to retroactively clarify something after your initial statement was misinterpreted (or you didn't phrase it precisely enough due to time, pressure, etc) and led to a long chain of misunderstandings?

I find it that for compsciy, mathy, physysy people they tend to quickly follow the new chain of implications after you clarify that initial erroneously interpreted interpreted statement. However, for the average folk this sometimes makes them think you are trying to mislead them or change what you said earlier with malicious intent. Anybody know how to deal with this?