It's a really nice forum you have here, until today I wouldn't have imagined such a forum existed. Too bad I've come here for the reason below. No worries though, I'm optimistic that with your help it will be like new again with minimal effort.
How did such a thing happen, you ask? I guess I'll never know, it was done by vandalistics who obviously had no respect for property.
1. Attempt to remove paint residue with enamel paint thinner and a cloth.
2. If step 1 does not work, proceed to sanding the stained area with 180 grit sand paper until stains are removed (if possible).
3. Clean work area, mask metal parts, wall and any other areas which will not be painted.
4. Paint area with wood lacquer using brush or a small roller. Repeat for about 2-3 coats, as necessary to acheive similar appearance to the rest of the clean wood area.
Well, not every job can be fun and rewarding, but I gotta do it.
I sincerely appreciate any support. Thanks.