The Movies those are from are : Jungle Book, Winnie the Pooh, Snow white and the Seven Dwarves and The Sword in the Stone (the guy tripping is sir Kay, the kid getting licked is the one who grows up to be King Arthur)
Both tripping scenes appear to be the same character from the same movie although I may be mistaken.
Like Accipiter said it was not uncommon for animation companies to reuse footage or general scene ideas to save time and money. Now that its all digital they have the ability to grind out movies at a much faster pace (and at a lesser quality I might add… there hasnt been a good Disney movie since Beauty and the Beast/ Lion King IMHO)
If youre going to say that Disney uses the same movies then you need to say that Warner Brothers, Hanna-Barbera, etc are guilty of the same crime. A lot of their shorts contain a good deal of “stock” footage.
IE the character running ... place in front of appropriate background and you have a chase scene.