I agreed to meet the late-comer at the gym at his chosen time of 2:15pm.

These days, it's always the late-comer who decides on what time and which gym we'll visit. But luckily, it's a place near my neighbourhood this time. I estimated a journey time of 30 minutes, but a happy confluence of buses take me there 10 minutes early. I occupy the extra time by doing some stretching.

10 minutes later, I'm done, but there's no sign of the late-comer. No new messages either.

So I make a somewhat controversial decision. I will only wait 10 minutes. Why 10 minutes? I have no idea. It's not like I've done such a thing before, after all. Maybe an imaginary survey was conducted among residents of my head space in a split second and 10 minutes was the result.

When time was up, I packed up my bag and headed to the bus stop. The bus was already in sight. 

I send the late-comer a message at about 2:30pm: I got tired of waiting and went home.

He replied: I'm already here. Are you coming or not?

I rolled my eyes. No.

He said: You could've just warmed up first.

I'm not sure what an appropriate response to this is. There are various options.

Option A is my initial reaction. Rather than telling me what to do, why don't you focus on yourself and be on time? 

Option B may be a completely alien concept. And you could've said, 'Sorry, I'm going to be late.' 

Option C may fly way above his head. So basically, it's my duty to wait and your prerogative to keep wasting my time?

Option D is sarcastically factual. I arrived early and already warmed up by the appointed time. Maybe you should try it too.

Option E is vindictive. Serves you right. 

Option F is confrontational. Why should I?

A friend who heard the story said, I hope the fact that you left teaches him a lesson. 

I'm not an optimist though. And why bother? I'm just going to go to gym with other people.