Guest:
5550j6eW6XF')); waitfor delay '0:0:15' -- 
0"XOR(if(now()=sysdate(),sleep(15),0))XOR"Z

(select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/

Guest:
5550j6eW6XF')); waitfor delay '0:0:15' -- 
-1; waitfor delay '0:0:15' --

Guest:
5550j6eW6XF')); waitfor delay '0:0:15' -- 
-1); waitfor delay '0:0:15' --

Guest:
5550j6eW6XF')); waitfor delay '0:0:15' -- 
-1 waitfor delay '0:0:15' --

Guest:
5550j6eW6XF')); waitfor delay '0:0:15' -- 
S0BRC3I0'; waitfor delay '0:0:15' --

Guest:
555-1) OR 520=(SELECT 520 FROM PG_SLEEP(15))--


Guest:
5550j6eW6XF')); waitfor delay '0:0:15' -- 
bA6FT89T'); waitfor delay '0:0:15' --

Guest:
5550j6eW6XF')); waitfor delay '0:0:15' -- 
vUNgdy4G')); waitfor delay '0:0:15' --

Guest:
5550j6eW6XF')); waitfor delay '0:0:15' -- 
3cTHViYW' OR 71=(SELECT 71 FROM PG_SLEEP(15))--