Is there anything I can do, to avoid seemingly unavoidable, nonreproduceable, random crashes?

If I should include crash reports, where do I locate them on my harddrive?

Last crash, I had the patch opened – not using it – and looking at Vade’s jitter optimization (one simple patch).

Using runtime doesn’t seem to do it.

I’ve attached the performance patch I’m working on, but I don’t really think it has something to do with the patch itself.
The problem is, that it doesn’t crash when I’m doing something with a controller, putting a lot of files into it – it can be when I haven’t even put a movies into it, so I suspect it is a computer problem/general max problem.

Macbook Pro
Intel Core i5
2,4 GHz
Ram 4 gb
500 gb HD with 20 % available diskspace.

I have trashed preferences and reset pram with no effect.