Questions on ux.stackexchange.com sometimes contain Balsamiq wireframes (often very helpful). Some of them are included at the beginning of the posting. Looking at these postings in the questions view (https://ux.stackexchange.com/questions) sometimes causes that most of the tooltip teaser to consists of the 'Balsamiq text', like in this example:
Q: Would it make sense to hide what I called here the 'Balsamiq text' and instead continue teasing the question text?