Me, twice (I changed jobs). However what I do is fairly specialized, so I'm not surprised they weren't able to find someone qualified in 3 months.

The other part of making it hard is so that the employer doesn't undertake the effort unless they really need the person and can't do with a local. I know the company made an exception for me, as they did for one other employee, but for the most part their policy is not to hire non-Swiss/EU citizens due to the administrative burden.

Thanks for setting me straight! I'll give it another shot after I've chosen a handle for my T-shape. I'm probably a bit too generalized to pull this off right now.