<human>: Alright some background first. A little over a month ago I went on a mission trip and we were doing demolition on the interior of a house. I was in a bathroom helping rip out walls, which happened to have tile on it. I pulled down a piece and it came down on my leg, causing a nice fleshy flap and nine stitches. (Mind you earlier that day our head chaperone told us that this would've been either the first or some small number of trips without need of a hospital, I forget the number. So bonus TIFU.) At least that week ended with me going to a concert. 

So I eventually got the stitches out and start going to unofficial Cross Country practices. Fast forward to last week, official practice starts and I'm doing well. Coach is impressed and I'm hyped for the season. Flash again to today. It's hot so my family goes to the pool and my mom is meeting a friend she hasn't seen in a while there. My brothers and I are taking turns on the diving board and I go up. Now when I jump I tend to bounce about a foot a half from the end of the board an then full force spring off the end of the board. So I go down to spring and my legs buckle and I hit my shin and fall into the water. I come up and my brothers and I realize that my shin, which had looked like it was healing well (skin sealed over and such), completely bust open. I get out and walk to the first-aid table, then thirty seconds later my mom walks in with her friend and I break the news. We were at the pool for barely 15 minutes and my mom and her friend had just walked in and we had to go. So now I have 10 stitches (two inside, eight on the outside) and I have to email my coach. 

Picture is of the initial incident I couldn't get a picture of this one open. Obvious WARNING that it's not particularly pretty. [Imgur]

Summarize the given text in a few sentences.
<bot>: I got stitches a over month ago and have had them out for awhile. Shin seemed healed and I slipped on a diving board causing it to open up and cutting short my mom's meeting with a friend she hasn't seen in awhile.