Update: Sadly, Tank is not going to make it. His vet, Dr. James Wesseldyk at Pet Vet Family Pet Care Center in Kalamazoo, MI acted swiftly and compassionately last night to relieve Tank's paraphimosis and bladder obstruction despite having no guarantee of payment as Tank's owner had relinquished him.
Unfortunately, Tank arrived malnourished with a massive infection and abnormal bleeding due to low platelet count. His prognosis for survival and recovery is poor. Realistically, further interventions likely would cause Tank a lot more pain without changing the final outcome. It breaks my heart (and I could tell that it breaks Dr. Wesseldyk's heart, too) that Tank's illness and death were almost certainly preventable.
I am really impressed by the care Tank received from Dr. Wesseldyk and his veterinary technician, Chelsea. I know there were other vet techs who participated in his care, but I do not know their names. Apparently the OP (not sure if she is ok with me putting her name here) has found homes for many other animals whose owners intended to euthanize out of inconvenience.
As @harveyspecter says, hug your bully (and other pets) today.