<human>: Can you give me the gist of the text in a nutshell?

So a few days ago I was at my best friend's end of school pool party because... end of school year.

Anyway, we (me, best friend, and one of our mutual friends) had been messing around in the pool for an hour and a half and we decided to go in and play BF4 since we were cramping.

During the messing around, we accidentally knocked over his chlorinator (a small buoy-type thing that you put chlorine tablets in) and spilled the 4 tablets into the deep end.

Since his family were neat freaks, we *had* to put the contents back in.

Here is the FU - I am a competitive swimmer and I could hold my breath the longest, plus I can open my eyes underwater for a decent amount of time.  Because of this, I was chosen to get the tablets.  Unfortunately, his pool is very chlorinated and burns my eyes, so I could only open my eyes underwater for a few seconds.  When I got the very last tablet, I closed my eyes and kicked off the bottom.  But my right foot didn't kick off the bottom - it kicked off his pool vacuum and a part of it sticking out landed right  on the bottom of my foot.  It left a ~~cut~~ cavern in my foot about a 1/3 inch wide and about 2 inches long, bleeding rather heavily.
<bot>: Went to best friend's end of year pool party.  Knocked over chlorinator w/ tablets inside.  Retrieved them.  During retrieval, got large cut on bottom of foot bleeding rather heavily.