When you get upset with relatives, for stressing a kid's first time to MK. They bought a one day ticket and arrived at The Park at 11:30am on a Sunday. And then they can't understand why they didn't get to see everything & the lines were so long. The child asked to go on Dumbo but is told - we're not waiting in line 45 min for that. But at the same time claim they that they didn't need to bother with FP. (I also had another relative do the same thing at Universal & their kids got to go on one ride all day. She said she would never go back again. This was after I had stated the importance of getting their first thing in the morning. My kids went on Hulk 2X, Dr. Doom & Spidey, - all before 10am!!!)
When you go with a group to Disney and they ask you to plan the day for them. Even when we went to AK they wanted me to 'lead' and I'd never been there before. However, dh loved the shortcut thru the RFC in the morning - all the while yelling at me, "where R we going? this doesn't go anywhere!" That is until we beat the huge line of people lined up at the main gates.
When you've drummed 'peak hours' into your teenaged son so much that he applies it to everything. He refuses to go to the movies on a weekend now. Opting instead for less crowded times & showings.