A custom designed one.
One that reads
I’m asthmatic. I’m currently working out. This means I’m probably wheezing. So if you hear me going…GASP…GASP…WHEEZE… this is NOT the ideal time to strike up a conversation. LEAVE ME ALONE!
Would that be rude?
I swear, I must have the friendliest face (snort) or something, because I can NOT go to the Y without having somebody try to strike up a conversation with me-usuaully right after I’ve started running on the treadmill.
I can have headphones on, totally not look at the person once…and still, they keep asking question…after question…and here I am, wheezing. Panting. And they expect me to TALK.