By Lindsay Rogers Reports of unruly passengers have become increasingly commonplace since the onset of the pandemic, with nearly 6,000 complaints filed to the Federal Aviation Administration in 2021 — more than 4,000 of them stemming from refusal to wear a mask. For context, the agency averaged 136 investigations a year from 2016 to 2020. And while things have slowed to some degree — probably owing to the potential for hefty fines (up to $37,000 per violation) and the threat of losing TSA-PreCheck eligibility — criminal passenger behavior is still far too prevalent moving in 2022, with 323 rep…