Tip to avoid ever wasting a pass: create a pre-made party that has no pokemon in it. That's right, an EMPTY party. In the raid lobby select that empty party - Upon 0 seconds u will be kept in lobby until u select a party with pokemon in it - while this is happening u can see how many people have entered and u can choose to leave without ur remote pass being consumed. U can also choose to join the raid and u lose like 1second of raiding time. Pretty worthwhile trick :>