I've had a reverse situation an interviewee where emails were written very enthusiastically and apparently technically competent, and then when the time for the

I've had a reverse situation an interviewee where emails were written very enthusiastically and apparently technically competent, and then when the time for the interview call came, whoever picked up the phone was definitely not the same person. They would just shut up after any technical questions - after a while we simply asked if he was nervous and he said yeah that's it. When asked for any previous experience he'd just copy and paste links to websites which didn't work and couldn't elaborate on what those websites even were. At one point he just read the description written on one of them. We asked him for his GitHub account or anything similar and he said 'oh I know that one' (he sent a 404 link) and we just had to end the call right there as it was getting surrealistically hilarious. The next day we got an email from the apparently competent one, claiming that this time the email was being written by a 'friend' of the candidate we talked to (same address every time), and that if we gave them a chance he'd be the 'perfect candidate with 100% qulaity' (sic). We politely refused.