"Is someone chasing you?"

I was doing a lactate cardiovascular workout on Monday afternoon (to give you an idea, you run 100 meter lines in less than 1 minute, take a 1 minute break, run 100 meter lines in less than 1 minute, rest one minute, run 100 meter lines in less than 1 minute, rest for 3 minutes then do it again...2 more times. It is challenging, and if you aren't finding it challenging, you need to work harder.
Anyway,
I was also expecting a phone call from my husband. I don't usually haul my phone around with me while I work out, but I was in the GroupExercise room with no one else in there and I needed to take the call.
So, I'm into my second round, second run, the timer goes off telling me it's time to break. The phone rings, so I hustle over to it and I answer it.
COMPLETELY breathless I answer the phone "hello". My husbands voice on the other end says with concern "Is someone chasing you?". Nope, but if someone ever tries, I'll be ready!