Wolf (5) just finished doing his paperwork for the day which included grade 4-6 Logic and grade 3 reading/comprehension (still too easy, but the stories are short enough that he doesn't get tired). Then he went and threw a temper tantrum tears and all because his baby brother (2.9) had taken apart a gun he had built out of Duplo blocks and was currently building something else with it. He grabbed the blocks from his brother and ran to his room. I made him give them back (he had seen his brother taking it apart while he was working and hadn't cared). He got all worked up because he wanted one specific block (that we have at least 15 of) and wouldn't even look to see if there were others. He finally looked found one immediately and now all is good.
Sometimes it blows my mind...
