Doraemon Takes a Day Off is an episode from the 1979 series. This is the first anime adaptation of the manga chapter Doraemon Takes a Day Off, which was adapted for two more times in 2005 and 2008.
Doraemon gives a Nobita a Doraemon emergency button and goes on a vacation with Mii Chan to a tropical area. Nobita gets into trouble a few times but restrains himself from pressing the button. Each of those times the problem was solved. When he is bullied by two boys he stomps on the button and destroys it. Suneo and Gian fight the two bullies and save Nobita. When Nobita returns home he sees Doraemon who returned because the button was pressed.