2. Not getting up at the crack of dawn
Looks like you can forget about that parking spot. There's always tomorrow!
3. Not looking both ways before crossing the boardwalk
Say you do find that ever-elusive parking spot, you’ll still probably have to carry your stuff a couple of miles to get to the beach. Then, you finally see it. The ocean. With your eyes fixed on the horizon and your arms full of crap, the last thing standing between you and that beautiful water is the boardwalk. Then BAM; you’re taken out by a rollerblader who thinks he's Apolo Ohno. Traffic gets crazy on the boardwalk. For the safety of everyone involved, cross carefully.
4. Swimming after the rain
Yes, we’re in a drought, but if you’ve lived in San Diego long enough to see it rain, then you should know that urban runoff is very real and very dangerous. Do yourself a favor and stay out of the water for at least 72 hours after it rains. The fact that we are in a drought increases the buildup of pollutants on the hard surfaces of our city that then get washed untreated into the ocean the next time it rains. You don’t want to be swimming in that.