When was the last time bạn turned your mobile phone off (not just on silent)?

About an giờ cách đây - I forgot I had it in my pocket when I came to the thư viện to use the internet. I of course got a call - telemarketer - didn't answer it but apologized for the noise.

when I was having problems with texting a friend.My keyboard would keep freezing and I had to keep shutting it down.