Nice attempt
I agree with a lot of what's already been said. What you have is good. I think you could work on the timing, I think it was kind of slow. Your work will obviously get better with time, and this is very impressive. I will confess to filling guilty that I found this funny. You introduce a character and a situation and then you kill them. This is funny but very overdone. It's a simple solution and once a way to have a twist ending, but I've both seen and done it too many times. I understand the longer the story the more you have to work but the ending is kind of trite. I till chuckled though so you must have done something right.