stalled

Ummm Would leaving an interior light on in the car for two days cause me to have power steering issues? I understand the pump runs of the battery. Reversing out at low revs wouldn't put enough power out to run the pump and cause it to potentially cut out. Is this something that could have...

Went out for a drive 2nite and when I went to set off I stalled it twice. I am used to driving diesels and never stalled the leon. Any ideas? Ta