When you roll into school to see a sub teacher, it usually meant your day was about to get a whole lot better and easier. This Substitute teacher learned the hard way that karaoke is not the educational way they do things in Texas. A student sent recorded a video of the substitute teacher belting out the song “Toxic” by Britney Spears, at least we think it is, but it’s hard to tell for sure. “I’ve heard worse Britney Spears covers, but the lights are a bit much,” said an AISD spokesperson. Did this teacher go to far? Aren't sub teachers just like day care for teens? We'd love to have this guy as our regular teacher!