Even though I don't think I'll never get into an accident, I know that it's VERY possible. Those stories were impacting and I am glad that I heard them. I understand that you are just passing down wisdom. But, no, I can't and will not show this to my dad, sorry to say. I do not have that kind of relationship with him. I know that I still could, but I prefer not to.
As for the defensive driving course, I think that those would be very beneficial (i'll check out the link later), as you stated. I will be looking into those. Though I do my fair share of skidding around in empty parking lots when it's raining. But I never do anything fast because I was in an accident with a friend 2 years ago, and it scares me doing tricks too fast, thank god! ANyway, I know that only defensive courses and years and years of experience can make me an absolutely "good driver." I have more to say, but can't think of it!

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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)