The certificateThe GC won't let your crew on-site.
The job is bid, the trailer is loaded, and the superintendent asks for your certificate of insurance before anyone swings a hammer. No policy, no certificate, and the day gets billed to nobody.
With comp in place, the certificate is a same-day email from your advisor. Crew works; invoice moves.
The sprained backThe little injury that becomes a wage claim.
A lift that should have been two people. He finishes the shift, can't get out of bed Thursday, and now it's an ER visit plus weeks he can't work. He's not angry. He just needs to pay rent.
Comp is built for exactly this: covered medical care and, after the waiting period, a share of lost wages, with the carrier handling the paperwork, not you.
The audit letter"Please provide payroll records for the policy period."
It reads like a summons. It's really a routine reconciliation of the payroll you estimated versus what you actually ran, but if your class codes were wrong or a sub had no coverage, the letter is where you find out.
An advisor sets the codes right at the start, keeps sub certificates on file, and sits with you for the audit. Boring, on purpose.
"We're all family / all 1099"The owner who found out otherwise.
Two cousins on the crew, everybody paid by 1099, so "we don't need comp." Then someone is hurt, and the state's definition of employee turns out to be broader than yours, and it's your problem, not theirs.
Most states require it once you hire; who counts varies. We confirm your state's rule and exemptions before you find out the hard way.
Your friendThe injured employee you actually care about.
Small teams are personal. When it's your friend in the ER, you want them taken care of, and you also can't afford to personally carry their bills and their paycheck for two months. Both things are true.
Comp lets you be the good boss without betting the business on it. That's the whole point of the thing.