You know, I'm not actually late for our dinner date. I'm just, uh, running a little... running a little.
And, honestly, I didn't mean to forget your birthday. I just, uh, lost my calendar.
I'm not actually cheating on you with that person. I'm just, uh, rehearsing for a play.
And, no, I'm not secretly planning to leave you for someone else. I'm just, uh, reorganizing the living room.