If you have "an ax to grind," then you have a complaint to discuss with someone. The image is of you sharpening your ax to chop away.

Ax Men - 2008 Ax to Grind 3-1 was released on:

USA: 10 January 2010

No, "have an ax to grind" is a common idiom that means to have a strong opinion or feeling about something because of a past experience or grievance. It does not involve personification.

Dear questioner:

One antonym for collusion is disinterest. Collusion is acting together with dark motives.

Disinterest is the attitude of one who has nothing to hide, no ax to grind.

(ax)(ax) = a2 + 2ax + x2