What about our Teachers?

I can say that some teachers are absolutely fabulous while others are enough to drive you mad. It is only those that I wish to address. I am not sure what the hiring process is for a teacher, but I know that they should be reviewed carefully. Really, look at how many sleep with students, yell at them, smack them, etc. It isn't right. Since when do they have that right? I think that teachers should be screened every year, maybe even a couple times a year, by lie detectors, random drug screening and thorough back ground checks. Yeah it may be costly, but are we going to put a value on childrens safety and well being?