SMU is terrible... so... why does this game scare me?

We played very well against Houston and it looks like we are about to roll thru the rest of the regular season without another loss. So, why does SMU scare me? They are not any good. We only beat them by 9 at home but that game was never really in doubt. Doherty is a terrible coach. We should win by 20. I am not predicting a loss but... dunno, just have an uneasy feeling in my gut. Hopefully it is just that hot pocket I had for a midnight snack...