I've got a similar problem; I've an avid rock climbing and alpinist too, and used to be an alpine instructor as a hobby. I had to give that last one up, due to liabilities: when a person I give training to makes a deadly mistake, gets disabled, etc, the chances were too big some for some liability lawsuit to occur.

It's a pity these things happen. Thank god I didn't have to give up rock climbing altogether yet. I don't know whether I could make such a choice (since both are enormous passions in my life).