So this is evidently the wrong forum in which to ask, but what's it like interviewing in other fields? Do chemists have to perform a titration in front of the p

So this is evidently the wrong forum in which to ask, but what's it like interviewing in other fields? Do chemists have to perform a titration in front of the panel? Do surgeons have to demonstrate an anatomy lesson on a cadaver? Do bricklayers have to build a wall in under an hour?