Depending on how intimate you are with one of the shy creatures, you may spot one or all of the following indicators.
1. Ink marks on furniture and bedding (don’t ask).
2. Ink marks on clothing (happens all the time).
3. Ink marks around mouth (from chewing the wrong end of the pen).
4. Ink marks on forehead (I don’t know how that happens).
5. Ink marks.
Artists may swap ink for paint and pen for brush, proving that writers are not the only ones afflicted with creative decoration.