http://bayblab.blogspot.com/2008/01/you-know-youre-biologist-when.html

An excerpt from above link that nearly exactly describes experiences with my former molecular-biology grad student girlfriend..

[quote]
You open the toothpaste with one hand.
You wash your hands before and after using to the washroom.
For you, media is something which increases your culture.
You can identify organs on roadkills.
You have a callus on your thumb.
You use the word "aliquot" in regular sentences.
Sometimes you momentarily vanish from social activities because of a timepoint.
...

http://bayblab.blogspot.com/2008/01/you-know-youre-biologist-when.html