If you do need to park diagonal to the kerb, bear in mind your front overhangs more than your back. (That's the extent of the car beyond the front or rear axle).
Because most modern cars are designed to slope slightly forward, the front "spoiler" (the plastic part of the bodywork, beneath the bumper) will be closer to the kerb or grass that at the rear. As you can see, there's a real danger of bending or snapping that part. And, while they're designed to be springy, they can crack.
Replacements are expensive. So move forward carefully when parking face-in toward the kerb. Proceed very cautiously, just as when doing a turn-in-the-road (and for the same reason). You you then can hear, or feel, the car make contact with the grass verge, and stop before you do yourself costly damage !