1)In one ep he claimed something like his mother had just gotten used to him in long pants

2)In an ep where we see Max's friend, Sid, from the Korean War we learn learn Max was a former serviceman (this partially explains Max's involvement with the government agency Control and maybe Max heard bad, true things about North Korean mass-murderer leader, Kim II Sung, so Max is dedicated to fighting the totalitarian Kaos).

3)In an ep we see Max and the Chief were on the baseball team at the Control Training Academy (did I give the name right?).

4) Max was a babysitter before joining Control!?! (Perhaps Max sort of babysat an Army general's children.)

5) Max was raised in the city (what city?).

I checked the first one and I was right on number 1. It is possible Max just said he was a babysitter for security reasons to 99 and did not specify that he was in the army (again security reasons).