My DD1 goes to bed and 'reads'/plays with quiet toys for 10-15 mins while i feed dd2 and put her to bed. Normally i feed in DD1s room but tonight i fed in my room as DD1 wouldn't leave DD2 alone. Popped back to DD1 to find she had scribbled on the walls then fallen asleep. By morning she's going to have forgotten what she did so how to I approach this with her? I need her to know its naughty! Also any tips on getting felt pen off walls? thanks