Looking for a program that will automatically respond to text messages.

[boredmug]

Say you have a crazy girlfriend that likes to send you tons of nonsense texts and annoy you with bs. Wouldn't it be great to have a program that will automatically respond to her texts with a text of your choosing so you don't have to deal with her bs and don't have to turn off your cell radio and miss other important calls and or texts. ANYTHING like this exist? I could really use it.