My parents didn't know when I started collecting lights. My first cobraheads I ordered from a electrical distributor when I was 15 or 16 and I brought them into my room quickly so they did not see them. I had a offset bunk bed where the top bunk lays across two shelving/drawer units and the bottom bed rolls under that. and had them standing up on the bottom shelves under the bed in such a way they were facing towards the wall. Did what I had to do to get started in the hobby.
My older brother snoops around my bedroom occasionally, so if he where to find out that i had one, he would tell my mom whenever i am not around him