1.2.3 If passenger is, or the Carrier reasonably believes passenger is, under the influence of alcohol or drugs.8.1.2.4 If passenger is, or the Carrier reasonably believes passenger is, in possession of unlawful drugs.8.1.2.5 If passenger???s mental or physical state or health is a danger or risk to passenger, the aircraft or any person in it.8.1.2.6 If passenger has refused to submit to a securit