Hi Mike. This being the internet where you as the presenter has no anonymity but the rest of us slobs do, you're going to intercept your fair share of people with a less than savory nature. Flipping out only encourages them.
While I admit as an observer it can be fun to watch a presenter flip his shit (cough Spoony cough), I don't want you to get so frustrated that you give up your reviewing. You're a great dry compliment to other reviewers who DO become incandescent rage monsters in and out of character. You're the witty nature show host of the crappy product world, use it!