Threaten 
To dream about issuing threats means that you need to be more emphatic.
To dream that someone is threatening you shows that you must deal with your worries about weakness.
Cow
To dream of a cow implies that you are content with following instructions and not causing an argument. You tend to be submissive and meek. It may also indicate that you seek comfort and protection or you wish to nurture others. In some societies, cows are symbolic of fruitfulness, sustenance, and maternity.
To see a cow with a skeleton face implies that your relationship with your mother isn't very close and you don't share your feelings with each other. You feel as if she doesn't provide you with your needs and requirements.
To see a herd of cows means that you want to be accepted by others and be a part of a group, society, or organization.
Gun
To dream of a gun represents hostility, wrath, and possible hazards. Perhaps you are having difficulties expressing your positive and negative emotions. A gun can also be a symbol of male genitalia and masculine intensity. Therefore, it can represent intensity or incapacity.
To dream that you are loading a gun suggests that you should use caution when expressing your anger or hostility. Don't allow these emotions to go unchecked.
To dream that you shoot someone with a gun implies that you harbor hostility for someone.
To dream that someone is shooting you with a gun denotes a difficult issue that you are facing. An issue may be making you feel vulnerable and exposed.
*Refer to Pistol or Shot.
Mad Dog
To dream of mad dog implies that you should be wary of negative slurs from adversaries. They may try to defame you and your peers.
To dream that you kill a mad dog indicates that you will be able to defeat your enemies and gain wealth and status.
Overdose
To overdose in a dream indicates a lack of control over yourself. You may be struggling with depression or addiction in your daily life and it might be time to find assistance.
An overdose in a dream may also indicate that you are filling yourself with too many responsibilities and you desire help from others to get out of an overwhelming situation.
Paramedics
Paramedics in a dream symbolize assistance.
To be saved by paramedics in a dream may symbolize the power of your friends to help you through hard times.
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