A good personal
motto. Always being in trouble, constantly doing things that do not
measure up to expectations, literal translation - "always
in the shit".
Dave's
D.I.Y. plumbing effort caused a flood in the bathroom which ruined an entire floor and brought down the ceilings in the lower floor.
"Dave, everything you do goes wrong. As they used to say in
ancient Rome, "semper in excreta". You're always
in the shit. This time, literally!"