He's had his breakfast and now everyone else needs to get theirs. He screams in his chair, the jumperoo and the playpen. He wants to get out and crawl about in the kitchen b ut it's too dangerous. He is safe in the playpen so I have left him there screaming for 10 minutes and I'm ignoring him because engaging makes it worse. Just want someone to tell me that this is OK! Everyone has gone upstairs to eat because he's being so loud.