feign illness a stomach upset is a good out. Or attend the first day and when you get home say you have a headache and need to go to bed early. In the morning complain the headache is still there and you feel dizzy so need to go back to bed.
Feigning illness can be complicated because you have to remain ill when they are home and that can be limiting depending on what you pick you have to decline food or be in bed a lot as if you seem to be improving they may expect you to go.
If you do attend complain that you have pulled a muscle in your back so need to go for a walk as the chairs make it worse. say you will listen to the program on you phone/radio. You can listen to whatever you like.