Won't bore you guys with details, but recently I was lucky enough to have a S.T. Dupont fountain pen and ballpoint set passed onto me. They are wonderfully understated (black Chinese lacquer, slim, gold trim).

But I'm having problems with the fountain pen. No matter how I carry it around (suit pen pocket, briefcase) the damn thing splatters ink inside the cap so that when I uncap it I have to clean off the ink before using it. It's not leaking as such, but I guess the knocking about when kept in jacket pen pocket or when I set my briefcase down etc. is causing a little splatter. It's very annoying.

I'm careful to ensure it's always kept nib-upwards when being carried, and even though I try to avoind bumping or sudden movements, the splattering still happens.

Some of you guys are very into your pens here, so I'm wondering if there's something I can do (or NOT do) that might solve the problem?

Cheers
M.