Not exactly an amusement park story, but a marvelous mental picture nevertheless:
It seems that on one of the visits of the Russian Imperial Family to Denmark, a group, including the Empress Marie Fedorovna, went to the Copenhagen Zoo.
The Empress, wearing a fashionable bonnet trimmed with artificial cherries and kept in place by an elastic band, unfortunately ventured too close to the chimpanzee cage.
One of the chimps, seeing the cherries, reached through the bars of the cage and grabbed the bonnet. The Princess of Wales, hearing her sister's shrieks, grabbed the Empress around the waist and started pulling in one direction, while the chimp pulled in the other. The rest of the part, reduced to tears of laughter, could not - or would not - offer any assistance.
Finally, the chimp, tiring of the struggle, suddenly let go, sending both Marie Feodorovna and the Princess of Wales staggering.
Given the sense of the humor of both Russian and Danish royal families, it is easy to understand why even years afterward, the merest mention of the zoo was enough to send them all off into fits of laughter.