You literally do not have time to read every TOS, EULA, and assorted agreements you sign. They know that.
http://techland.time.com/2012/03/06...-to-read-all-your-privacy-policies-each-year/
That's a 6 year old article dealing with broad latitudes. For stuff that's immediately entered into or that requires a scroll, I read it. It'd be hypocritical if I didn't.