lol everytime I so much as move during class,
Sometimes I spend the entire lecture standing with my bottom pressed firmly to the front edge of the desk to help make sure it stays in.
This unfortunately cuases another problem entirely becuase it puts me on prominant display for the eyes of my students, some of which like to devouer me with thier eyes. (having a plug in does nothing to alleviate the feeling that they know I am clenching a object in my ass or the subsequient wetness it produces)
Humiliation can be a very very subtle art.