McAfee tweeted out on Monday that he had been detained because he wouldn't put on a medically certified mask instead of the thong.
He wrote: "Visited Catalonia just before Europe banned Catalonians from travelling. Tried to return to Germany and were refused entrance. They demanded we wear masks. I put on my thong mask. They demanded I replace it. I refused. Tussle. Jail. Black eye. Released."
"Trivial issue but waiting for high level beaurocrats [sic] to arrive. Slow bastards, as you know," he wrote while the issue was unfolding. "My Coronavirus mask is the problem. I am insisting it is the safest available and I'm refusing to wear anything else — for my health's sake. Authority!?!?!?!?" he continued.