One boss was intimidated because I was a smart woman. To make himself feel better, he told a vendor that he shouldn't have to be involved in this type of meeting, at his level, but since both me (CIO in all but title) and my Telecom Manager were not qualified to make telecom decisions, he needed to be there.
The funny thing is that it was a vendor that I had already told that we didn't want to buy from them and they schmoozed my boss. We wanted to use Cisco, but this vendor spoke at a kindergarten level for him, but not at an intelligent level for me and the Telecom Mgr. Once we talked to that vendor's referrals, my boss was convinced that they were as rinky dink as we'd said and we were allowed to purchase Cisco.
He also told me that it angered him that I was smarter than him.
He's the reason I left that company.