What are the least successful "engagement" efforts you've seen or done and what made them fail?

There is an absolute ocean of shitty "engagement" out there so I'll start; doing a fundraiser that asks employees making minimum wage or less to take unpaid time to contribute to their community while salaried employees still earn regular wages for the time they spend.

Or when they try to raise money from employees by letting them wear casual clothes or some other "privilege", when only leadership is paid well enough to afford it.

Appalling.