Ask HN: How can founders protect themselves from being fired by the board?

What can startup founders do early on to protect themselves from being fired by the board from their executive positions?

I am talking pre-VC when the founders are the only directors of the board and can pass any bylaw. Also assuming, of course, that VCs want to invest enough to look past certain things.

1. Can it be written into bylaws that founders cannot be fired unless there is a severe breach of trust / legal issues?

2. Is it more common to issue stock with extra voting powers?