I have a problem with my neighbors bushes hanging past my property line. This wouldn't be such a big deal except the bushes a very thorny and a huge pain to mow under. If I asked my neighbors to trim them and they don't, is it legal for me to trim them? And how long should I wait for them to do it? They only come to this house on the weekends and spend most of the time working in their yard. I don't think it is too much to ask to get it done the same weekend that I ask them to do it? Help me with this problem, thank you.