Mace?

So I'm doing my laps and a lot of time it is after dark.  I like walking in the dark. It is quieter.  So Jason, my neighbor across the parking lot who sometimes walks with me, asks me if I have mace.  I look at him with complete confusion.  He tells me it is dark outside.  Well yes, yes it is.  And no, no I don't carry mace.  Wouldn't even think of it.  I didn't tell him about all the nighttime walks the littles and I take and we don't carry mace then either.  I do however have my cell phone.  It's the best I can do.  Nice of Jason to think of that for us, but my mind just doesn't work like that.