Your experiences with toddlers.
Today my sim Sophia adopted a little baby called George. He aged up into a toddler and I chose the fussy trait. I haven't really had any big issues when it comes to my toddlers having this trait, but ...
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And then there was Jamey: 
From sun up to sun down, he was a bit of a menace. He cried initially when his younger brother (the blond) was born. But he likes him now. :)
From sun up to sun down, he was a bit of a menace. He cried initially when his younger brother (the blond) was born. But he likes him now. :)
