in his flashback, you see him pulling out his hair because her found out marge was pregnant with Bart, and again with Lisa and then lastly with Maggie, he was stressed about it and probably scared seeing at the time his life was perfect.
springfield elementery i know because there was an epesode were English documentery filmer declan dosmand filmed every adult in springfield when they were young and in school and then he filmed homer...
In the early scripts for the Simpsons, "do'h" was written as "annoyed grunt". Dan Castelleneta (who plays Homer) interpreted this as d'oh - which he said derived from Jimmy Finlayson who appeared in...