<span>Dennis' behavior can be best characterized as "social loafing".
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Social loafing depicts the propensity of people to advance less exertion when they are a piece of a gathering. Since all individuals from the gathering are pooling their push to accomplish a shared objective, every individual from the gathering contributes short of what they would on the off chance that they were exclusively mindful.
Etiquette refers to a person's behaviour and attitude
Not clear on your question here.. but substance abuse is when you abuse a substance and usually an illegal one such as drugs or alcohol, and when you increase that, you're just using it more? I want to help you but the question is unclear to me!
Answer:
they are,
1. killing cow may not be appropriate for some country.
2. short costumes wearing maynot be appropriate in some culture.
