What's the riskiest contract clause you've ever missed?

We've analyzed 60+ contracts through VIDI and the most common risks people miss are:

- Auto-renewal clauses (locked in for another year without realizing)

- Liability caps that only protect one side

- Vague termination terms

Curious - has anyone here ever signed a contract and later realized there was a clause that cost you money?

Would love to hear real stories. This is exactly the problem VIDI was built to solve.