One of our members, Antti didn't get the memo, and called from the main dood of our building asking for me to open the door. So @markkujantunen decided to go and drive to our place and fetch our friend.
I forgot to mention that Antti told me in the car that he did not receive your text message because his mobile phone malfunctions intermittently and unpredictably. According to Antti, it somehow fails to show some messages but shows others normally. Maybe we should phone him to make sure he gets the memo in addition to sending an SMS.