What did Tony Weller mean by Bevare of the vidders?

In Charles Dickens' "The Pickwick Papers," Tony Weller's phrase "Bevare of the vidders" is a humorous way of warning about the dangers of being overly observant or cautious, often referring to the idea of being wary of those who scrutinize or judge you. The term "vidders" is a playful take on "witnesses" or "watchers," suggesting that one should be cautious of those who might be overly critical or judgmental. This reflects Weller's comedic, yet practical, approach to navigating social interactions and the pitfalls of attention from others.