Zombies kept causing Sim to "Freak Out", then randomly - a radio?

[jesirose]

My sim was trying to go to sleep, and there was a horde of zombies outside. They just kept appearing. Even though my sim was inside (and had no windows even) he kept waking up every few seconds and having "Freak Out" (and he's not neurotic, so what the heck?)

Then suddenly the zombies all ran off and I saw at the other end of the lot was a radio playing music.

What the heck? I did not have a radio... I'm glad they are distracted and now he can sleep but what just happened?

[Pam]

I think zombies like to dance and probably carry their own portable radio. 

[jesirose]

I think zombies like to dance and probably carry their own portable radio. 

Well they do like to dance! They all had a zombie dance party around the radio!!