I just ruined a $1000 carbon rim on my commute this week. Moral is don't do all of the following.

1. Let a slow leak fester, thinking you can just keep pumping up in the morning for a few more days before properly fixing on the weekend
2. Forget to check in on said slow leak after a day at the office
3. When your bike rear then starts handling a bit strange due to said slow leak, don't actually look at the tire, instead blame it on the heavy load in the rear panniers
4. Gun it over a large speed bump

I am lucky that it seems to be under warranty but it is only because of an absurdly good warranty that Roval has on their carbon rims.. two years free replacement for any reason if it happened while biking.