Airports operate outside regular time, allowing for unusual drinking habits. Ryanair's CEO, Michael O'Leary, advocates for a ban on early morning alcohol sales due to unruly passenger behavior, suggesting a two-drink limit enforced by boarding passes. While some support this, others, like Sir Tim Martin of Wetherspoon, argue it would be hard to implement. Rules about intoxication on flights vary by country, with some airlines having strict policies against drunkenness.