1. if the person is saying goodbye to everyone and saying sorry and how much they love them
2. if they write a note
3. when the person starts giving up on everything
4. if the person is drowning in self pity they tend to think suicidal
5. signs of being depressed or emotional outburst for no reason
Motor oil or house paint is what needs special handling. i just usually throw away batteries. but i think the right answer is motor oil. it can effect the earth or ground water. <span />
Overdose or either being impatient with your self and goin second choice all the time.