Regarding the downside of Bigfoot, it was once used against me in an attempt to take over a contract I had with a Fortune 10 company. Some of you know that after leaving the military, I repurposed my experience in nuclear, biological and chemical defense into anti-terrorism consulting in the private sector. I started doing this in '98 right after the African Embassy bombings and had three lean years. Then 2001. Within three years I was consulting full time for the world's largest insurance company. The contract expanded massively and I needed more engineers with military experience, so I reached out to a friend from the military who was running a successful government contracting company.
Anyway, one afternoon, I get asked about my bigfoot experience, and he's grinning ear to ear. I explain it and move on. But that's not the end of it. The next day is the steering committee meeting for the project. I walk in with one C-level staff officer present and three who are in position to take over C-level staff positions, and it's brought up again. I then relate my Class A encounter from Washoe County Nevada as clinically as possible. And then move on.
In the end, it didn't hurt me, but that was only because I was forthcoming about it and they had already developed a high level of confidence in me.
But, It's a good thing to consider that if someone thinks they can use it against you to their advantage, they may well do so.