Every now and again, when Angel is travelling in her wheelchair, the people who are walking behind her would get so impatient that they try to overtake her. Taken by surprise, she cannot brake in time and rams right into them. There are also those who follow her closely behind, and again it can get dangerous if she backs up without noticing them. Tired of this, Angel put up a small sign on the back of her wheelchair that says “Keep a proper distance”, hoping people can be more considerate for the sake of “road safety”.
