This is like when they ask you a job applicant about their weaknesses in an interview and they answer: I work too hard sometimes.

“There’s no question at times of my life, partially driven by how passionately I felt about this country, that I worked far too hard and things happened in my life that were not appropriate,” said Gingrich

[…]

“What I can tell you is that when I did things that were wrong, I wasn’t trapped in situation ethics, I was doing things that were wrong, and yet, I was doing them,”

via 44 – Newt Gingrich: ‘Passion for the country’ led to personal indiscretions (video).