Lovable Littlefoot, the main character of the series, a kind hearted, sweet, innocent Apatosaurus, oh yeah, I forgot to say STUBBORN AS A MULE! Yes, a sweet, kind, lovable character is that stubborn. I don't hate Littlefoot very much, but his stubborness is what really gets to me.
Here are some examples, in 1, when he and Cera are hiding from Sharptooth, and Cera starts running, he yells its the wrong way, not considering that Cera may be running for her folks, and automatically assuming that the way back to his folks is safe. If he didn't scream its the wrong way, they might have gotten out safely.
Another is his stubborness when Cera tries to leave, he's hostile BEFORE she insults his mother, and tries to be a dictator and act that his word is final. That scene always irked me, and he thought his mother's word was right, as if it was a divine God's word, which it wasn't.
In 5, he automatically trusted Chomper blindly. I love Chomper of course, but he just blindly assumes he's friendly.
After 5, I don't recall any other incidents like this, until of course the TV series.
In the Search For the Sky Color Stones, he blindly believes that the Sky Color Stones are at the river, yet doesn't consider that they are more likely to be in caves. Honestly, I thought Littlefoot matured past this in 6.