How can I be sure that my funds in a #bitcoin coinjoin (like Whirlpool) won‘t get stolen (e.g. send to an address that I do not control)? I mean, I do not sign every transaction manually, so I think this has to happen like automatically and I do not control the flow of my funds?!?!

Is it like in Bitcoin mining, where playing according to the rules is more beneficial (i.e. the aggregated Whirlpool fee over time) than a malicious behaviour (e.g. when the trust in Whirlpool is lost, this service is done)?

I would consider myself an average joe in regards to my technical understanding of bitcoin. But I‘m curious and want to get a deeper understanding.