The pink elephant's odyssey

Most of the people I know are mentally deranged. This might come as a shock to most of you, but most of the people you know are mentally deranged, even you. In fact the only difference between a same man and an insane man is that the one who is insane simply says everything that passes through his mind.

A few years ago I remember seeing my sister's YM status : "I am a pink elephant". That made me wonder what was she thinking when she wrote that. What makes us think these kind of analogies in broad day light ?
Because in this case the subject is my sister, and we do share some genes (assuming I am not adopted), I assumed the elephant was just an expression of her childish mind, a joke perhaps or just a way of attracting attention. But what if that was not the case ? What if she really thought she was a pink elephant ?
In this case the obvious conclusions are :
1. She is colorblind
    There are no pink elephants, as far as I know and surely as far as my sister knew.
2. She is lonely or ignorant
    The fact that she cannot distinguish a human beeing from an elephant only shows that she has never been in contact with other humans before, or never really bonded with other people.
3. She is delusional
    Consumption of alcohol, drugs or even food in large quantities can lead to a state of lightheadedness.
4. She is lying
    Although aware of the fact that she is not an elephant, she tries to convince everybody else that she is right and they are wrong.

From my previous experiences I know that there is no absolute truth. The truth is always composed of the famous "gray area", nor black, nor white. So truth is that my sister is a bit colorblind, lonely, delusional, and a liar. This raises a serious problem, as the only type of person that would lie, take drugs / drink alot of alcohol and is usually alone, is a criminal. Think about it. A drug dealer has to lie alot, event to himself. Alcohol and drug consumption are common in this line of work and regular doses of hallucinogenic drugs can lead to more than just colorblindness. I am sure you all know that people in the drug business never act alone, so she must be part of a larger organisation or at least related to one. To find out which "rank" she holds we must look closely at the YM status. The sentence itself has to be a signal of some sort. Any encoded signal must contain the message, the recipient and the source.
The source : "a pink elephant".
The recipient : anyone in her YM contact list online at the time (not so important right now)
The message : "I am"
Looking closer at the source we can deduct that she is not part of the organisation but rather closely related to it, codename "pink elephant". So she is one of many because she is "a" pink elephant not "the" pink elephant.
The message itself is related to the source. Maybe she was ready to do something, or she had already finished doing it. We might never find out.

Conclusion : My sister is mentally deranged.


Note: This might explain some of her weird behaviour in the past. More data required for further analysis.