4 floors building

There was a condominium with 4 floors.
1st floor - pretty lady
2nd floor- soldier
3rd floor- teacher
4th floor- blind man

One day, the lady was bathing. Suddenly her doorbell rang. It was the soldier, came to look for her.
'Ding, Dong!' her doorbell rang. she wrapped herself with a towel n opened the door.
' Hello, you gotta congrats me! because i've finally became a captain!' said the soldier in excitement.
' Oh, i see. Congratulations! ' she congratulated him and continued her bath.
When she was about to get into the bath tub, the third floor's teacher came and rang on her doorbell.
'Ding, Dong!' her doorbell rang again. She wrapped her towel again and opened the door.
' Good day!, i've got good news! i've been promoted to be a principal!' announced the teacher proudly.
' Oh wow!, congratulations! ' she then went to continue her bath.
After she laid in the bath tub for a few minutes. the doorbell rang again. She was soo anoyed. She went to check who was it throuhg the door hole and found out that it was the blind man. She had no worries about that and cane out without her towel and opened the door.
'Hi! you gotta be happy for me!' the blind man said joyfully and stopped and walked away.
she lady was curious and stopped him and asked: ' Huh? and what should i be happy of?'
' Oh.. em..erm.. nothing.. sorry to bother you." the blind man said shylyand tried to walk away but her hands still grabbing him, refusing to let him go.
She was curious about what he was so happy about and refused to let him go unless he speak out.
So he did as he was told to, he then mumbled softly: ' You gotta congrats me because i can see now!'