Hi Bothrops,

You know, there was an actual case of a mainland city converting their parking meters to accept only what a driver felt was right and fair.  But strangely enough, this resulted in an actual increase in revenue from parking meters.  It seems people were more willing to feed the meters when they had more control over what seemed appropriate where previously a lot of money was never collected either because the meters weren't being fed at all or drivers simply chose to skip the expense and parked elsewhere.

How about opening most UH athletic events using a similar honor system?  Fans can enter any such event "first come, first served" with the understanding they are only obligated to donate or pay what they thought the event was worth.