My arguement is Toad (of Toad Hall) was ND and the Wind In The Willows would have been so very boring without him!
His friends were exasperated by his seemingly selfish obsession with gizmos and gadgets.
His erratic impulsive purchases and maniacal behaviour in his car.
The outrageous ideas for celebratory days that would sometimes be a hit but other times catastrophically miss the mark.
His disregard for danger and his insatiable search for thrills.
His child-like curiousity of the world. And the demand avoidance!
Make me change my mind :)
Disclaimer: I am aware that Toad was not a real person