a) forcibly shove my son/daughter off the chair and turn off World of Warcraft while he/she's struggling to get on her/his feet
b) threaten death and destruction if I don't get five minutes to, like, pay bills
c) say I need the computer. say it again. say it several times. in a determined tone of voice that brooks no argument. rinse, repeat.
d) wait until my children have gone to bed, which is starting to be past MY bedtime
e) wait until my children have grown up and moved out of the house
f) consider buying another computer for my very own
g) give up and get the iPad out again