If servers in Pennsylvania regularly wrote "Thank you" on restaurant bills, their average income from tips would be significantly higher than it otherwise would have been.
The vague summit declaration by EU leaders amounted to a gamble that the markets would back off without being told precisely how the EU planned to help Greece.
This may cause stomach upset, ulcers, headache, backache, high blood pressure, and in severe cases, this can lead to panic attacks or a panic disorder.
For example, should such participation be encouraged only for patients who have insight into their condition and who are well informed about their treatment?