Alan: Hey, I won't make it to the gym today
John: Hey. Sure, no problem. Something happened?
Alan: No, my muscles are just super sore after our last time :)
John: Hahaha :) Thought so :) 
John: You wimp :P 
Alan: hey, not nice to make fun of your elders!
John: You're 2 years older than me :D
Alan: Still I'm older :)
John: Yeah, you are a lazy old fart :)
Alan: Lazy yes, farting yes, old - no :)
John: Haha
John: You expect to recover this month or will you suffer eternally :)
Alan: I think I will be fine for Friday, wiseass :P
John: Ok, so we meet on Friday as usual?
Alan: Yeah, same time as ususal. CU!
John: CU!
Alan is still sore from the last time so is not going to the gym tonight. He thinks he will be fine for Friday and will meet John then. 