Why was Zyon sick...

15 Dec :
930am - Zyon n Rachel bathed at my mil's place. (without using soap...)
1030am - Met them as Rachel had Ballet class.
12noon- Reached home with Zyon. Mil & Rachel went to relative's house for celebration.
2pm - Asked Zyon to shower before his tuition starts at 3pm.
5.30pm - Rachel came home.
6pm - Zyon came home. I asked Rachel to shower. I went to shower too.
615pm - I came out from shower, was looking for Zyon. Rachel already done with her shower. She "informed" me tt Zyon was bathing. (THREE times already...)
630pm - Asked zyon why did he shower again??? He said tt Rachel told him "Go and bath"... And he questioned her "Did mummy ask me to bath?" Rachel say Yes... And off Zyon goes... to bath.
*FAINTZ*... End up, Zyon had a fever that very night... Luckily after medication, his fever went down. Of cos, bathing is not the only reason he fell sick...
Was Zyon too innocent? Rachel too smart?