Halfway through Adultery for Beginners and feeling it was heavy going, I asked him if I should give up and pursue another idea I'd had. He said yes.
I'd never say this to a student. I think every one who ever tries to write a novel gets to a point when it seems grim and ghastly and any new idea appears fresh and shiny. But that shiny new idea will be grim and grisly too at the 40,000 word point. I'd advise anyone to push on through.
When I'd finished the first draft of A for B he said it had been a useful experience, and now I'd got one novel under my belt, I should now ditch it and write another one.
Arghh. Writing a novel is a huge investment of time and energy, and you can always re-write and make it better. I've turned round novels several times, cutting characters, adding plot. I'm not saying it's easy, but it's a darn sight easier than starting another one from scratch. And quicker too.
That's just a couple of examples I can remember. I ignored all his advice, stuck with re-writing A for B, and it went on to be published round the world etc etc. So, I think you could safely say he gave me bad advice.
But it was useful because it was consistently terrible. I learned to do the opposite of what he suggested, and that was the right choice for me. Sometimes we need to be pointed in a direction for us to know that that direction is wrong. Bad advice can be very good at clarifying what we really think, at what our instincts say is the right choice. I loved that tutor - he gave me really good bad advice.