もちろん本気じゃないですよ？念のため(^^;)
おさとうさんは木の棒を回すだけのお仕事がいつも大変そうです。

Naturally, she wasn't serious, okay? Just to make sure. (^^;)

Osatou-san always seems to have a rough time of it at work, which is just spinning a wooden stick.