Yes and no.
If the summons is not addressed to you, you are not legally required to accept it, however, if the person is living with you, then the officer is allowed to leave the summons with you.
If...
If you refuse to answer a summons, which in effect is giving no answer to the Court, the Court would likely find in the creditor's favor. When a party simply provides no answer or no "defense", the...
Normal Summon cosmic compass and that will allow you to special a token for each monster your opponent controls and then double summon one more monster and there obelisk is out.