I read my contracts. I make a risk assessment. I weigh it against likelihood.

I rarely question clients contracts unless they fuck with the payment terms, or unless they impose unreasonable work guarantees. Almost nothing else matters in a contract.

If the contract is unreasonable I don't hestitate to say "this bit isn't practical". If they don't agree to adjust to fair and reasonable terms I drop the client/contract.

I really hate working for companies who impose exploitative terms because they hold the more powerful position in the relationship. I'd rather tell em to go elsewhere.