“Obscure comedy, scene where father detects lie from daughter’s handwriting”

I’m trying to identify a very obscure comedy movie or TV movie that I watched on television sometime between roughly 1987 and 1993. The movie itself may have been produced in the late 1970s or early 1980s.

What I remember:

• It was a light family-oriented comedy, possibly with mild action/chase scenes.
• The protagonists were two white male friends, probably around their mid-30s.
• One of them had a teenage daughter, around 16 or 17 years old.
• I do NOT remember any major stars in it, which makes me think it may have been a made-for-TV movie or direct-to-video production.
• The visual style felt very much like a TV movie from that era.

The one scene I remember clearly:

The daughter leaves a handwritten note/billet for her father. At first he believes what the note says, but then he studies the handwriting/signature more carefully and notices something unusual about the way she wrote part of it — maybe a curved or elongated stroke in the signature.

He then concludes that she was lying or hiding something. I vaguely remember him saying something like he could tell from that specific handwriting detail that something was wrong. Because of that realization, he and his friend decide to do something different, possibly going after her or trying to find her.

The scene probably took place in the family kitchen or inside the house.

The tone was comedic, not dramatic or violent.

Does this sound familiar to anyone?