I'm not sure what country you're from or what country you flew to for this ridiculous 'interview' process, but it's one of the many things I loathe about this field...right up there with "rock star" and "ninja" coder.

Honestly it's stuff like this, that has me contemplating giving up this career path because there's just no more room for people in their 50s with 25 years of experience in information technology, who aren't willing to sleep at the office, drink your "insert trendy microbrew here" on tap, and suffer through a ludicrous ask like "we want you to work for three days for absolutely nothing to see if you're a good fit".