<p>Asking for LOR and determining what type of letter they feel they can write for you are important determinants. It would be very unprofessional for a recommender to make assumptions about what you do or don't want to do. If they don't feel they can write a strong personal recommendation for you find another recommender.
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My internship experiences in engineering have left me with a sour taste in my mouth.
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Did you share these feelings with the same Profs mentioned earlier? Seems they might know you aren't so keen on their field.
<a href="http://www.lsac.org/LSAC.asp?url=/lsac/letters-of-recommendation.asp%5B/url%5D">http://www.lsac.org/LSAC.asp?url=/lsac/letters-of-recommendation.asp</a></p>